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Finding the Fourth Proportional to 3,691.10, 5,530.47 and 2,916.13

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Solution

The fourth proportional to 3,691.10, 5,530.47 and 2,916.13 is: 4,369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.10 : 5,530.47 = 2,916.13 : x
  2. Step 2: Convert to fraction form
    3,691.10/5,530.47 = 2,916.13/x
  3. Step 3: Cross multiply
    3,691.10x = 5,530.47 × 2,916.13
  4. Step 4: Simplify right side
    3,691.10x = 16,127,569.48
  5. Step 5: Solve for x
    x = 16,127,569.48/3,691.10
  6. Step 6: Final answer
    x = 4,369.31

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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.