Home / 2,489.13-3,730.05-1,512.88

Finding the Fourth Proportional to 2,489.13, 3,730.05 and 1,512.88

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Solution

The fourth proportional to 2,489.13, 3,730.05 and 1,512.88 is: 2,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.13 : 3,730.05 = 1,512.88 : x
  2. Step 2: Convert to fraction form
    2,489.13/3,730.05 = 1,512.88/x
  3. Step 3: Cross multiply
    2,489.13x = 3,730.05 × 1,512.88
  4. Step 4: Simplify right side
    2,489.13x = 5,643,108.72
  5. Step 5: Solve for x
    x = 5,643,108.72/2,489.13
  6. Step 6: Final answer
    x = 2,267.10

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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.