Home / 5,175.52-7,142.06-2,817.61

Finding the Fourth Proportional to 5,175.52, 7,142.06 and 2,817.61

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Solution

The fourth proportional to 5,175.52, 7,142.06 and 2,817.61 is: 3,888.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.52 : 7,142.06 = 2,817.61 : x
  2. Step 2: Convert to fraction form
    5,175.52/7,142.06 = 2,817.61/x
  3. Step 3: Cross multiply
    5,175.52x = 7,142.06 × 2,817.61
  4. Step 4: Simplify right side
    5,175.52x = 20,123,528.87
  5. Step 5: Solve for x
    x = 20,123,528.87/5,175.52
  6. Step 6: Final answer
    x = 3,888.22

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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.