Home / 3,998.60-5,517.14-2,426.40

Finding the Fourth Proportional to 3,998.60, 5,517.14 and 2,426.40

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Solution

The fourth proportional to 3,998.60, 5,517.14 and 2,426.40 is: 3,347.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.60 : 5,517.14 = 2,426.40 : x
  2. Step 2: Convert to fraction form
    3,998.60/5,517.14 = 2,426.40/x
  3. Step 3: Cross multiply
    3,998.60x = 5,517.14 × 2,426.40
  4. Step 4: Simplify right side
    3,998.60x = 13,386,788.50
  5. Step 5: Solve for x
    x = 13,386,788.50/3,998.60
  6. Step 6: Final answer
    x = 3,347.87

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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.