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Finding the Fourth Proportional to 2,809.08, 4,214.16 and 1,662.12

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Solution

The fourth proportional to 2,809.08, 4,214.16 and 1,662.12 is: 2,493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.08 : 4,214.16 = 1,662.12 : x
  2. Step 2: Convert to fraction form
    2,809.08/4,214.16 = 1,662.12/x
  3. Step 3: Cross multiply
    2,809.08x = 4,214.16 × 1,662.12
  4. Step 4: Simplify right side
    2,809.08x = 7,004,439.62
  5. Step 5: Solve for x
    x = 7,004,439.62/2,809.08
  6. Step 6: Final answer
    x = 2,493.50

Related Problems

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Half scale
Find fourth proportional to 5,618.16, 8,428.32 and 3,324.24
Double scale
Find fourth proportional to 2,810.08, 4,215.66 and 1,663.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.