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Finding the Fourth Proportional to 837.30, 1,156.34 and 572.96

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Solution

The fourth proportional to 837.30, 1,156.34 and 572.96 is: 791.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.30 : 1,156.34 = 572.96 : x
  2. Step 2: Convert to fraction form
    837.30/1,156.34 = 572.96/x
  3. Step 3: Cross multiply
    837.30x = 1,156.34 × 572.96
  4. Step 4: Simplify right side
    837.30x = 662,536.57
  5. Step 5: Solve for x
    x = 662,536.57/837.30
  6. Step 6: Final answer
    x = 791.28

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1.5x scale

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.