Home / 3,751.56-5,176.89-2,158.11

Finding the Fourth Proportional to 3,751.56, 5,176.89 and 2,158.11

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Solution

The fourth proportional to 3,751.56, 5,176.89 and 2,158.11 is: 2,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.56 : 5,176.89 = 2,158.11 : x
  2. Step 2: Convert to fraction form
    3,751.56/5,176.89 = 2,158.11/x
  3. Step 3: Cross multiply
    3,751.56x = 5,176.89 × 2,158.11
  4. Step 4: Simplify right side
    3,751.56x = 11,172,298.08
  5. Step 5: Solve for x
    x = 11,172,298.08/3,751.56
  6. Step 6: Final answer
    x = 2,978.04

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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.