Home / 2,491.12-3,726.60-2,081.08

Finding the Fourth Proportional to 2,491.12, 3,726.60 and 2,081.08

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Solution

The fourth proportional to 2,491.12, 3,726.60 and 2,081.08 is: 3,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.12 : 3,726.60 = 2,081.08 : x
  2. Step 2: Convert to fraction form
    2,491.12/3,726.60 = 2,081.08/x
  3. Step 3: Cross multiply
    2,491.12x = 3,726.60 × 2,081.08
  4. Step 4: Simplify right side
    2,491.12x = 7,755,352.73
  5. Step 5: Solve for x
    x = 7,755,352.73/2,491.12
  6. Step 6: Final answer
    x = 3,113.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.