Home / 2,738.90-4,108.35-2,487.80

Finding the Fourth Proportional to 2,738.90, 4,108.35 and 2,487.80

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Solution

The fourth proportional to 2,738.90, 4,108.35 and 2,487.80 is: 3,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.90 : 4,108.35 = 2,487.80 : x
  2. Step 2: Convert to fraction form
    2,738.90/4,108.35 = 2,487.80/x
  3. Step 3: Cross multiply
    2,738.90x = 4,108.35 × 2,487.80
  4. Step 4: Simplify right side
    2,738.90x = 10,220,753.13
  5. Step 5: Solve for x
    x = 10,220,753.13/2,738.90
  6. Step 6: Final answer
    x = 3,731.70

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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.