Home / 2,881.38-4,321.10-1,125.92

Finding the Fourth Proportional to 2,881.38, 4,321.10 and 1,125.92

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Solution

The fourth proportional to 2,881.38, 4,321.10 and 1,125.92 is: 1,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.38 : 4,321.10 = 1,125.92 : x
  2. Step 2: Convert to fraction form
    2,881.38/4,321.10 = 1,125.92/x
  3. Step 3: Cross multiply
    2,881.38x = 4,321.10 × 1,125.92
  4. Step 4: Simplify right side
    2,881.38x = 4,865,220.90
  5. Step 5: Solve for x
    x = 4,865,220.90/2,881.38
  6. Step 6: Final answer
    x = 1,688.51

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1.5x scale

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.