Home / 4,151.58-5,728.98-2,381.88

Finding the Fourth Proportional to 4,151.58, 5,728.98 and 2,381.88

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Solution

The fourth proportional to 4,151.58, 5,728.98 and 2,381.88 is: 3,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151.58 : 5,728.98 = 2,381.88 : x
  2. Step 2: Convert to fraction form
    4,151.58/5,728.98 = 2,381.88/x
  3. Step 3: Cross multiply
    4,151.58x = 5,728.98 × 2,381.88
  4. Step 4: Simplify right side
    4,151.58x = 13,645,742.88
  5. Step 5: Solve for x
    x = 13,645,742.88/4,151.58
  6. Step 6: Final answer
    x = 3,286.88

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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.