Home / 3,426.40-5,139.60-2,324.80

Finding the Fourth Proportional to 3,426.40, 5,139.60 and 2,324.80

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Solution

The fourth proportional to 3,426.40, 5,139.60 and 2,324.80 is: 3,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.40 : 5,139.60 = 2,324.80 : x
  2. Step 2: Convert to fraction form
    3,426.40/5,139.60 = 2,324.80/x
  3. Step 3: Cross multiply
    3,426.40x = 5,139.60 × 2,324.80
  4. Step 4: Simplify right side
    3,426.40x = 11,948,542.08
  5. Step 5: Solve for x
    x = 11,948,542.08/3,426.40
  6. Step 6: Final answer
    x = 3,487.20

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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.