Home / 1,747.59-2,621.39-707.15

Finding the Fourth Proportional to 1,747.59, 2,621.39 and 707.15

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Solution

The fourth proportional to 1,747.59, 2,621.39 and 707.15 is: 1,060.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.59 : 2,621.39 = 707.15 : x
  2. Step 2: Convert to fraction form
    1,747.59/2,621.39 = 707.15/x
  3. Step 3: Cross multiply
    1,747.59x = 2,621.39 × 707.15
  4. Step 4: Simplify right side
    1,747.59x = 1,853,699.30
  5. Step 5: Solve for x
    x = 1,853,699.30/1,747.59
  6. Step 6: Final answer
    x = 1,060.72

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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.