Home / 6,680.45-10,028.45-3,909.12

Finding the Fourth Proportional to 6,680.45, 10,028.45 and 3,909.12

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Solution

The fourth proportional to 6,680.45, 10,028.45 and 3,909.12 is: 5,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.45 : 10,028.45 = 3,909.12 : x
  2. Step 2: Convert to fraction form
    6,680.45/10,028.45 = 3,909.12/x
  3. Step 3: Cross multiply
    6,680.45x = 10,028.45 × 3,909.12
  4. Step 4: Simplify right side
    6,680.45x = 39,202,414.46
  5. Step 5: Solve for x
    x = 39,202,414.46/6,680.45
  6. Step 6: Final answer
    x = 5,868.23

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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.