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Finding the Fourth Proportional to 3,754.80, 5,182.07 and 3,124.22

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Solution

The fourth proportional to 3,754.80, 5,182.07 and 3,124.22 is: 4,311.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.80 : 5,182.07 = 3,124.22 : x
  2. Step 2: Convert to fraction form
    3,754.80/5,182.07 = 3,124.22/x
  3. Step 3: Cross multiply
    3,754.80x = 5,182.07 × 3,124.22
  4. Step 4: Simplify right side
    3,754.80x = 16,189,926.74
  5. Step 5: Solve for x
    x = 16,189,926.74/3,754.80
  6. Step 6: Final answer
    x = 4,311.79

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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.