Home / 3,722.20-5,140.08-2,398.18

Finding the Fourth Proportional to 3,722.20, 5,140.08 and 2,398.18

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Solution

The fourth proportional to 3,722.20, 5,140.08 and 2,398.18 is: 3,311.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.20 : 5,140.08 = 2,398.18 : x
  2. Step 2: Convert to fraction form
    3,722.20/5,140.08 = 2,398.18/x
  3. Step 3: Cross multiply
    3,722.20x = 5,140.08 × 2,398.18
  4. Step 4: Simplify right side
    3,722.20x = 12,326,837.05
  5. Step 5: Solve for x
    x = 12,326,837.05/3,722.20
  6. Step 6: Final answer
    x = 3,311.71

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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.