Home / 6,121.46-9,175.90-4,147.28

Finding the Fourth Proportional to 6,121.46, 9,175.90 and 4,147.28

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Solution

The fourth proportional to 6,121.46, 9,175.90 and 4,147.28 is: 6,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.46 : 9,175.90 = 4,147.28 : x
  2. Step 2: Convert to fraction form
    6,121.46/9,175.90 = 4,147.28/x
  3. Step 3: Cross multiply
    6,121.46x = 9,175.90 × 4,147.28
  4. Step 4: Simplify right side
    6,121.46x = 38,055,026.55
  5. Step 5: Solve for x
    x = 38,055,026.55/6,121.46
  6. Step 6: Final answer
    x = 6,216.66

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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.