Home / 3,981.43-5,494.32-2,302.80

Finding the Fourth Proportional to 3,981.43, 5,494.32 and 2,302.80

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Solution

The fourth proportional to 3,981.43, 5,494.32 and 2,302.80 is: 3,177.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.43 : 5,494.32 = 2,302.80 : x
  2. Step 2: Convert to fraction form
    3,981.43/5,494.32 = 2,302.80/x
  3. Step 3: Cross multiply
    3,981.43x = 5,494.32 × 2,302.80
  4. Step 4: Simplify right side
    3,981.43x = 12,652,319.43
  5. Step 5: Solve for x
    x = 12,652,319.43/3,981.43
  6. Step 6: Final answer
    x = 3,177.83

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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.