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Finding the Fourth Proportional to 1,747.85, 2,622.80 and 652.97

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Solution

The fourth proportional to 1,747.85, 2,622.80 and 652.97 is: 979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.85 : 2,622.80 = 652.97 : x
  2. Step 2: Convert to fraction form
    1,747.85/2,622.80 = 652.97/x
  3. Step 3: Cross multiply
    1,747.85x = 2,622.80 × 652.97
  4. Step 4: Simplify right side
    1,747.85x = 1,712,617.91
  5. Step 5: Solve for x
    x = 1,712,617.91/1,747.85
  6. Step 6: Final answer
    x = 979.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.