Home / 3,618.46-5,420.68-2,382.15

Finding the Fourth Proportional to 3,618.46, 5,420.68 and 2,382.15

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Solution

The fourth proportional to 3,618.46, 5,420.68 and 2,382.15 is: 3,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.46 : 5,420.68 = 2,382.15 : x
  2. Step 2: Convert to fraction form
    3,618.46/5,420.68 = 2,382.15/x
  3. Step 3: Cross multiply
    3,618.46x = 5,420.68 × 2,382.15
  4. Step 4: Simplify right side
    3,618.46x = 12,912,833.85
  5. Step 5: Solve for x
    x = 12,912,833.85/3,618.46
  6. Step 6: Final answer
    x = 3,568.60

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1.5x scale

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.