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Finding the Fourth Proportional to 5,741.32, 7,921.84 and 3,754.80

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Solution

The fourth proportional to 5,741.32, 7,921.84 and 3,754.80 is: 5,180.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,741.32 : 7,921.84 = 3,754.80 : x
  2. Step 2: Convert to fraction form
    5,741.32/7,921.84 = 3,754.80/x
  3. Step 3: Cross multiply
    5,741.32x = 7,921.84 × 3,754.80
  4. Step 4: Simplify right side
    5,741.32x = 29,744,924.83
  5. Step 5: Solve for x
    x = 29,744,924.83/5,741.32
  6. Step 6: Final answer
    x = 5,180.85

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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.