Home / 5,680.62-7,839.64-3,162.70

Finding the Fourth Proportional to 5,680.62, 7,839.64 and 3,162.70

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Solution

The fourth proportional to 5,680.62, 7,839.64 and 3,162.70 is: 4,364.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.62 : 7,839.64 = 3,162.70 : x
  2. Step 2: Convert to fraction form
    5,680.62/7,839.64 = 3,162.70/x
  3. Step 3: Cross multiply
    5,680.62x = 7,839.64 × 3,162.70
  4. Step 4: Simplify right side
    5,680.62x = 24,794,429.43
  5. Step 5: Solve for x
    x = 24,794,429.43/5,680.62
  6. Step 6: Final answer
    x = 4,364.74

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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.