Home / 6,158.25-8,497.20-3,639.78

Finding the Fourth Proportional to 6,158.25, 8,497.20 and 3,639.78

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Solution

The fourth proportional to 6,158.25, 8,497.20 and 3,639.78 is: 5,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,158.25 : 8,497.20 = 3,639.78 : x
  2. Step 2: Convert to fraction form
    6,158.25/8,497.20 = 3,639.78/x
  3. Step 3: Cross multiply
    6,158.25x = 8,497.20 × 3,639.78
  4. Step 4: Simplify right side
    6,158.25x = 30,927,938.62
  5. Step 5: Solve for x
    x = 30,927,938.62/6,158.25
  6. Step 6: Final answer
    x = 5,022.20

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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.