Home / 3,753.76-5,180.48-2,160.90

Finding the Fourth Proportional to 3,753.76, 5,180.48 and 2,160.90

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Solution

The fourth proportional to 3,753.76, 5,180.48 and 2,160.90 is: 2,982.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.76 : 5,180.48 = 2,160.90 : x
  2. Step 2: Convert to fraction form
    3,753.76/5,180.48 = 2,160.90/x
  3. Step 3: Cross multiply
    3,753.76x = 5,180.48 × 2,160.90
  4. Step 4: Simplify right side
    3,753.76x = 11,194,499.23
  5. Step 5: Solve for x
    x = 11,194,499.23/3,753.76
  6. Step 6: Final answer
    x = 2,982.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.