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Finding the Fourth Proportional to 2,486.34, 3,729.42 and 637.47

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Solution

The fourth proportional to 2,486.34, 3,729.42 and 637.47 is: 956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.34 : 3,729.42 = 637.47 : x
  2. Step 2: Convert to fraction form
    2,486.34/3,729.42 = 637.47/x
  3. Step 3: Cross multiply
    2,486.34x = 3,729.42 × 637.47
  4. Step 4: Simplify right side
    2,486.34x = 2,377,393.37
  5. Step 5: Solve for x
    x = 2,377,393.37/2,486.34
  6. Step 6: Final answer
    x = 956.18

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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.