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Finding the Fourth Proportional to 837.91, 1,250.72 and 739.39

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Solution

The fourth proportional to 837.91, 1,250.72 and 739.39 is: 1,103.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.91 : 1,250.72 = 739.39 : x
  2. Step 2: Convert to fraction form
    837.91/1,250.72 = 739.39/x
  3. Step 3: Cross multiply
    837.91x = 1,250.72 × 739.39
  4. Step 4: Simplify right side
    837.91x = 924,759.91
  5. Step 5: Solve for x
    x = 924,759.91/837.91
  6. Step 6: Final answer
    x = 1,103.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.