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Finding the Fourth Proportional to 1,495.34, 2,242.39 and 617.97

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Solution

The fourth proportional to 1,495.34, 2,242.39 and 617.97 is: 926.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.34 : 2,242.39 = 617.97 : x
  2. Step 2: Convert to fraction form
    1,495.34/2,242.39 = 617.97/x
  3. Step 3: Cross multiply
    1,495.34x = 2,242.39 × 617.97
  4. Step 4: Simplify right side
    1,495.34x = 1,385,729.75
  5. Step 5: Solve for x
    x = 1,385,729.75/1,495.34
  6. Step 6: Final answer
    x = 926.70

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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.