Home / 2,279.32-3,419.06-818.68

Finding the Fourth Proportional to 2,279.32, 3,419.06 and 818.68

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Solution

The fourth proportional to 2,279.32, 3,419.06 and 818.68 is: 1,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.32 : 3,419.06 = 818.68 : x
  2. Step 2: Convert to fraction form
    2,279.32/3,419.06 = 818.68/x
  3. Step 3: Cross multiply
    2,279.32x = 3,419.06 × 818.68
  4. Step 4: Simplify right side
    2,279.32x = 2,799,116.04
  5. Step 5: Solve for x
    x = 2,799,116.04/2,279.32
  6. Step 6: Final answer
    x = 1,228.05

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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.