Home / 2,825.28-4,239.24-1,265.13

Finding the Fourth Proportional to 2,825.28, 4,239.24 and 1,265.13

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Solution

The fourth proportional to 2,825.28, 4,239.24 and 1,265.13 is: 1,898.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.28 : 4,239.24 = 1,265.13 : x
  2. Step 2: Convert to fraction form
    2,825.28/4,239.24 = 1,265.13/x
  3. Step 3: Cross multiply
    2,825.28x = 4,239.24 × 1,265.13
  4. Step 4: Simplify right side
    2,825.28x = 5,363,189.70
  5. Step 5: Solve for x
    x = 5,363,189.70/2,825.28
  6. Step 6: Final answer
    x = 1,898.29

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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.