Home / 3,708.84-5,115.30-2,382.66

Finding the Fourth Proportional to 3,708.84, 5,115.30 and 2,382.66

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Solution

The fourth proportional to 3,708.84, 5,115.30 and 2,382.66 is: 3,286.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.84 : 5,115.30 = 2,382.66 : x
  2. Step 2: Convert to fraction form
    3,708.84/5,115.30 = 2,382.66/x
  3. Step 3: Cross multiply
    3,708.84x = 5,115.30 × 2,382.66
  4. Step 4: Simplify right side
    3,708.84x = 12,188,020.70
  5. Step 5: Solve for x
    x = 12,188,020.70/3,708.84
  6. Step 6: Final answer
    x = 3,286.21

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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.