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Finding the Fourth Proportional to 691.83, 952.29 and 626.22

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Solution

The fourth proportional to 691.83, 952.29 and 626.22 is: 861.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    691.83 : 952.29 = 626.22 : x
  2. Step 2: Convert to fraction form
    691.83/952.29 = 626.22/x
  3. Step 3: Cross multiply
    691.83x = 952.29 × 626.22
  4. Step 4: Simplify right side
    691.83x = 596,343.04
  5. Step 5: Solve for x
    x = 596,343.04/691.83
  6. Step 6: Final answer
    x = 861.98

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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.