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Finding the Fourth Proportional to 3,637.47, 5,452.47 and 1,415.70

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Solution

The fourth proportional to 3,637.47, 5,452.47 and 1,415.70 is: 2,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.47 : 5,452.47 = 1,415.70 : x
  2. Step 2: Convert to fraction form
    3,637.47/5,452.47 = 1,415.70/x
  3. Step 3: Cross multiply
    3,637.47x = 5,452.47 × 1,415.70
  4. Step 4: Simplify right side
    3,637.47x = 7,719,061.78
  5. Step 5: Solve for x
    x = 7,719,061.78/3,637.47
  6. Step 6: Final answer
    x = 2,122.10

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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.