Home / 4,081.40-5,631.30-2,402.20

Finding the Fourth Proportional to 4,081.40, 5,631.30 and 2,402.20

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Solution

The fourth proportional to 4,081.40, 5,631.30 and 2,402.20 is: 3,314.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.40 : 5,631.30 = 2,402.20 : x
  2. Step 2: Convert to fraction form
    4,081.40/5,631.30 = 2,402.20/x
  3. Step 3: Cross multiply
    4,081.40x = 5,631.30 × 2,402.20
  4. Step 4: Simplify right side
    4,081.40x = 13,527,508.86
  5. Step 5: Solve for x
    x = 13,527,508.86/4,081.40
  6. Step 6: Final answer
    x = 3,314.43

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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.