Home / 2,449.10-3,670.05-2,081.90

Finding the Fourth Proportional to 2,449.10, 3,670.05 and 2,081.90

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Solution

The fourth proportional to 2,449.10, 3,670.05 and 2,081.90 is: 3,119.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.10 : 3,670.05 = 2,081.90 : x
  2. Step 2: Convert to fraction form
    2,449.10/3,670.05 = 2,081.90/x
  3. Step 3: Cross multiply
    2,449.10x = 3,670.05 × 2,081.90
  4. Step 4: Simplify right side
    2,449.10x = 7,640,677.10
  5. Step 5: Solve for x
    x = 7,640,677.10/2,449.10
  6. Step 6: Final answer
    x = 3,119.79

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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.