Home / 3,524.92-5,278.98-2,115.40

Finding the Fourth Proportional to 3,524.92, 5,278.98 and 2,115.40

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Solution

The fourth proportional to 3,524.92, 5,278.98 and 2,115.40 is: 3,168.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,524.92 : 5,278.98 = 2,115.40 : x
  2. Step 2: Convert to fraction form
    3,524.92/5,278.98 = 2,115.40/x
  3. Step 3: Cross multiply
    3,524.92x = 5,278.98 × 2,115.40
  4. Step 4: Simplify right side
    3,524.92x = 11,167,154.29
  5. Step 5: Solve for x
    x = 11,167,154.29/3,524.92
  6. Step 6: Final answer
    x = 3,168.06

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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.