Home / 4,081.14-5,631.86-2,312.91

Finding the Fourth Proportional to 4,081.14, 5,631.86 and 2,312.91

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Solution

The fourth proportional to 4,081.14, 5,631.86 and 2,312.91 is: 3,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.14 : 5,631.86 = 2,312.91 : x
  2. Step 2: Convert to fraction form
    4,081.14/5,631.86 = 2,312.91/x
  3. Step 3: Cross multiply
    4,081.14x = 5,631.86 × 2,312.91
  4. Step 4: Simplify right side
    4,081.14x = 13,025,991.09
  5. Step 5: Solve for x
    x = 13,025,991.09/4,081.14
  6. Step 6: Final answer
    x = 3,191.75

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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.