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Finding the Fourth Proportional to 2,191.54, 3,287.25 and 893.01

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Solution

The fourth proportional to 2,191.54, 3,287.25 and 893.01 is: 1,339.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.54 : 3,287.25 = 893.01 : x
  2. Step 2: Convert to fraction form
    2,191.54/3,287.25 = 893.01/x
  3. Step 3: Cross multiply
    2,191.54x = 3,287.25 × 893.01
  4. Step 4: Simplify right side
    2,191.54x = 2,935,547.12
  5. Step 5: Solve for x
    x = 2,935,547.12/2,191.54
  6. Step 6: Final answer
    x = 1,339.49

Related Problems

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Double scale
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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.