Home / 2,781.32-4,156.62-2,230.92

Finding the Fourth Proportional to 2,781.32, 4,156.62 and 2,230.92

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Solution

The fourth proportional to 2,781.32, 4,156.62 and 2,230.92 is: 3,334.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.32 : 4,156.62 = 2,230.92 : x
  2. Step 2: Convert to fraction form
    2,781.32/4,156.62 = 2,230.92/x
  3. Step 3: Cross multiply
    2,781.32x = 4,156.62 × 2,230.92
  4. Step 4: Simplify right side
    2,781.32x = 9,273,086.69
  5. Step 5: Solve for x
    x = 9,273,086.69/2,781.32
  6. Step 6: Final answer
    x = 3,334.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.