Home / 6,891.23-10,320.42-3,766.55

Finding the Fourth Proportional to 6,891.23, 10,320.42 and 3,766.55

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Solution

The fourth proportional to 6,891.23, 10,320.42 and 3,766.55 is: 5,640.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.23 : 10,320.42 = 3,766.55 : x
  2. Step 2: Convert to fraction form
    6,891.23/10,320.42 = 3,766.55/x
  3. Step 3: Cross multiply
    6,891.23x = 10,320.42 × 3,766.55
  4. Step 4: Simplify right side
    6,891.23x = 38,872,377.95
  5. Step 5: Solve for x
    x = 38,872,377.95/6,891.23
  6. Step 6: Final answer
    x = 5,640.85

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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.