Home / 3,753.93-5,180.46-2,160.78

Finding the Fourth Proportional to 3,753.93, 5,180.46 and 2,160.78

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Solution

The fourth proportional to 3,753.93, 5,180.46 and 2,160.78 is: 2,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.93 : 5,180.46 = 2,160.78 : x
  2. Step 2: Convert to fraction form
    3,753.93/5,180.46 = 2,160.78/x
  3. Step 3: Cross multiply
    3,753.93x = 5,180.46 × 2,160.78
  4. Step 4: Simplify right side
    3,753.93x = 11,193,834.36
  5. Step 5: Solve for x
    x = 11,193,834.36/3,753.93
  6. Step 6: Final answer
    x = 2,981.90

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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.