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Finding the Fourth Proportional to 2,572.74, 3,859.11 and 624.94

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Solution

The fourth proportional to 2,572.74, 3,859.11 and 624.94 is: 937.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.74 : 3,859.11 = 624.94 : x
  2. Step 2: Convert to fraction form
    2,572.74/3,859.11 = 624.94/x
  3. Step 3: Cross multiply
    2,572.74x = 3,859.11 × 624.94
  4. Step 4: Simplify right side
    2,572.74x = 2,411,702.56
  5. Step 5: Solve for x
    x = 2,411,702.56/2,572.74
  6. Step 6: Final answer
    x = 937.41

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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.