Home / 3,439.68-5,155.19-1,876.43

Finding the Fourth Proportional to 3,439.68, 5,155.19 and 1,876.43

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Solution

The fourth proportional to 3,439.68, 5,155.19 and 1,876.43 is: 2,812.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.68 : 5,155.19 = 1,876.43 : x
  2. Step 2: Convert to fraction form
    3,439.68/5,155.19 = 1,876.43/x
  3. Step 3: Cross multiply
    3,439.68x = 5,155.19 × 1,876.43
  4. Step 4: Simplify right side
    3,439.68x = 9,673,353.17
  5. Step 5: Solve for x
    x = 9,673,353.17/3,439.68
  6. Step 6: Final answer
    x = 2,812.28

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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.