Home / 5,175.28-7,143.08-3,080.60

Finding the Fourth Proportional to 5,175.28, 7,143.08 and 3,080.60

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Solution

The fourth proportional to 5,175.28, 7,143.08 and 3,080.60 is: 4,251.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.28 : 7,143.08 = 3,080.60 : x
  2. Step 2: Convert to fraction form
    5,175.28/7,143.08 = 3,080.60/x
  3. Step 3: Cross multiply
    5,175.28x = 7,143.08 × 3,080.60
  4. Step 4: Simplify right side
    5,175.28x = 22,004,972.25
  5. Step 5: Solve for x
    x = 22,004,972.25/5,175.28
  6. Step 6: Final answer
    x = 4,251.94

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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.