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Finding the Fourth Proportional to 837.35, 1,156.17 and 572.18

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Solution

The fourth proportional to 837.35, 1,156.17 and 572.18 is: 790.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.35 : 1,156.17 = 572.18 : x
  2. Step 2: Convert to fraction form
    837.35/1,156.17 = 572.18/x
  3. Step 3: Cross multiply
    837.35x = 1,156.17 × 572.18
  4. Step 4: Simplify right side
    837.35x = 661,531.57
  5. Step 5: Solve for x
    x = 661,531.57/837.35
  6. Step 6: Final answer
    x = 790.03

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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.