Home / 5,382.12-8,062.20-2,600.40

Finding the Fourth Proportional to 5,382.12, 8,062.20 and 2,600.40

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Solution

The fourth proportional to 5,382.12, 8,062.20 and 2,600.40 is: 3,895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.12 : 8,062.20 = 2,600.40 : x
  2. Step 2: Convert to fraction form
    5,382.12/8,062.20 = 2,600.40/x
  3. Step 3: Cross multiply
    5,382.12x = 8,062.20 × 2,600.40
  4. Step 4: Simplify right side
    5,382.12x = 20,964,944.88
  5. Step 5: Solve for x
    x = 20,964,944.88/5,382.12
  6. Step 6: Final answer
    x = 3,895.29

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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.