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Finding the Fourth Proportional to 1,557.55, 2,337.74 and 633.75

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Solution

The fourth proportional to 1,557.55, 2,337.74 and 633.75 is: 951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.55 : 2,337.74 = 633.75 : x
  2. Step 2: Convert to fraction form
    1,557.55/2,337.74 = 633.75/x
  3. Step 3: Cross multiply
    1,557.55x = 2,337.74 × 633.75
  4. Step 4: Simplify right side
    1,557.55x = 1,481,542.73
  5. Step 5: Solve for x
    x = 1,481,542.73/1,557.55
  6. Step 6: Final answer
    x = 951.20

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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.