Home / 3,214.23-4,428.54-2,681.19

Finding the Fourth Proportional to 3,214.23, 4,428.54 and 2,681.19

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Solution

The fourth proportional to 3,214.23, 4,428.54 and 2,681.19 is: 3,694.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.23 : 4,428.54 = 2,681.19 : x
  2. Step 2: Convert to fraction form
    3,214.23/4,428.54 = 2,681.19/x
  3. Step 3: Cross multiply
    3,214.23x = 4,428.54 × 2,681.19
  4. Step 4: Simplify right side
    3,214.23x = 11,873,757.16
  5. Step 5: Solve for x
    x = 11,873,757.16/3,214.23
  6. Step 6: Final answer
    x = 3,694.12

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.