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Finding the Fourth Proportional to 637.02, 879 and 374.88

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Solution

The fourth proportional to 637.02, 879 and 374.88 is: 517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.02 : 879 = 374.88 : x
  2. Step 2: Convert to fraction form
    637.02/879 = 374.88/x
  3. Step 3: Cross multiply
    637.02x = 879 × 374.88
  4. Step 4: Simplify right side
    637.02x = 329,519.52
  5. Step 5: Solve for x
    x = 329,519.52/637.02
  6. Step 6: Final answer
    x = 517.28

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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.