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Finding the Fourth Proportional to 837.91, 1,156.26 and 483.85

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Solution

The fourth proportional to 837.91, 1,156.26 and 483.85 is: 667.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.91 : 1,156.26 = 483.85 : x
  2. Step 2: Convert to fraction form
    837.91/1,156.26 = 483.85/x
  3. Step 3: Cross multiply
    837.91x = 1,156.26 × 483.85
  4. Step 4: Simplify right side
    837.91x = 559,456.40
  5. Step 5: Solve for x
    x = 559,456.40/837.91
  6. Step 6: Final answer
    x = 667.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.