Home / 5,121.45-7,059.92-4,175.79

Finding the Fourth Proportional to 5,121.45, 7,059.92 and 4,175.79

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Solution

The fourth proportional to 5,121.45, 7,059.92 and 4,175.79 is: 5,756.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.45 : 7,059.92 = 4,175.79 : x
  2. Step 2: Convert to fraction form
    5,121.45/7,059.92 = 4,175.79/x
  3. Step 3: Cross multiply
    5,121.45x = 7,059.92 × 4,175.79
  4. Step 4: Simplify right side
    5,121.45x = 29,480,687.16
  5. Step 5: Solve for x
    x = 29,480,687.16/5,121.45
  6. Step 6: Final answer
    x = 5,756.32

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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.