Home / 2,479.90-3,720.36-2,250.28

Finding the Fourth Proportional to 2,479.90, 3,720.36 and 2,250.28

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Solution

The fourth proportional to 2,479.90, 3,720.36 and 2,250.28 is: 3,375.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.90 : 3,720.36 = 2,250.28 : x
  2. Step 2: Convert to fraction form
    2,479.90/3,720.36 = 2,250.28/x
  3. Step 3: Cross multiply
    2,479.90x = 3,720.36 × 2,250.28
  4. Step 4: Simplify right side
    2,479.90x = 8,371,851.70
  5. Step 5: Solve for x
    x = 8,371,851.70/2,479.90
  6. Step 6: Final answer
    x = 3,375.88

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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.