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Finding the Fourth Proportional to 3,690.01, 5,127.16 and 3,651.49

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Solution

The fourth proportional to 3,690.01, 5,127.16 and 3,651.49 is: 5,073.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.01 : 5,127.16 = 3,651.49 : x
  2. Step 2: Convert to fraction form
    3,690.01/5,127.16 = 3,651.49/x
  3. Step 3: Cross multiply
    3,690.01x = 5,127.16 × 3,651.49
  4. Step 4: Simplify right side
    3,690.01x = 18,721,773.47
  5. Step 5: Solve for x
    x = 18,721,773.47/3,690.01
  6. Step 6: Final answer
    x = 5,073.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.