Home / 1,747.68-2,621.97-515.04

Finding the Fourth Proportional to 1,747.68, 2,621.97 and 515.04

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Solution

The fourth proportional to 1,747.68, 2,621.97 and 515.04 is: 772.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.68 : 2,621.97 = 515.04 : x
  2. Step 2: Convert to fraction form
    1,747.68/2,621.97 = 515.04/x
  3. Step 3: Cross multiply
    1,747.68x = 2,621.97 × 515.04
  4. Step 4: Simplify right side
    1,747.68x = 1,350,419.43
  5. Step 5: Solve for x
    x = 1,350,419.43/1,747.68
  6. Step 6: Final answer
    x = 772.69

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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.