Home / 3,680.76-5,081.32-2,839.57

Finding the Fourth Proportional to 3,680.76, 5,081.32 and 2,839.57

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Solution

The fourth proportional to 3,680.76, 5,081.32 and 2,839.57 is: 3,920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.76 : 5,081.32 = 2,839.57 : x
  2. Step 2: Convert to fraction form
    3,680.76/5,081.32 = 2,839.57/x
  3. Step 3: Cross multiply
    3,680.76x = 5,081.32 × 2,839.57
  4. Step 4: Simplify right side
    3,680.76x = 14,428,770.93
  5. Step 5: Solve for x
    x = 14,428,770.93/3,680.76
  6. Step 6: Final answer
    x = 3,920.06

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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.