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Finding the Fourth Proportional to 637.64, 881.31 and 588.42

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Solution

The fourth proportional to 637.64, 881.31 and 588.42 is: 813.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.64 : 881.31 = 588.42 : x
  2. Step 2: Convert to fraction form
    637.64/881.31 = 588.42/x
  3. Step 3: Cross multiply
    637.64x = 881.31 × 588.42
  4. Step 4: Simplify right side
    637.64x = 518,580.43
  5. Step 5: Solve for x
    x = 518,580.43/637.64
  6. Step 6: Final answer
    x = 813.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.