Home / 5,689.23-7,850.18-3,170.78

Finding the Fourth Proportional to 5,689.23, 7,850.18 and 3,170.78

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Solution

The fourth proportional to 5,689.23, 7,850.18 and 3,170.78 is: 4,375.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.23 : 7,850.18 = 3,170.78 : x
  2. Step 2: Convert to fraction form
    5,689.23/7,850.18 = 3,170.78/x
  3. Step 3: Cross multiply
    5,689.23x = 7,850.18 × 3,170.78
  4. Step 4: Simplify right side
    5,689.23x = 24,891,193.74
  5. Step 5: Solve for x
    x = 24,891,193.74/5,689.23
  6. Step 6: Final answer
    x = 4,375.14

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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.