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Finding the Fourth Proportional to 1,092.42, 1,637.41 and 476.64

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Solution

The fourth proportional to 1,092.42, 1,637.41 and 476.64 is: 714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092.42 : 1,637.41 = 476.64 : x
  2. Step 2: Convert to fraction form
    1,092.42/1,637.41 = 476.64/x
  3. Step 3: Cross multiply
    1,092.42x = 1,637.41 × 476.64
  4. Step 4: Simplify right side
    1,092.42x = 780,455.10
  5. Step 5: Solve for x
    x = 780,455.10/1,092.42
  6. Step 6: Final answer
    x = 714.43

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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.