Home / 2,722.70-3,758.04-2,279.90

Finding the Fourth Proportional to 2,722.70, 3,758.04 and 2,279.90

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Solution

The fourth proportional to 2,722.70, 3,758.04 and 2,279.90 is: 3,146.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.70 : 3,758.04 = 2,279.90 : x
  2. Step 2: Convert to fraction form
    2,722.70/3,758.04 = 2,279.90/x
  3. Step 3: Cross multiply
    2,722.70x = 3,758.04 × 2,279.90
  4. Step 4: Simplify right side
    2,722.70x = 8,567,955.40
  5. Step 5: Solve for x
    x = 8,567,955.40/2,722.70
  6. Step 6: Final answer
    x = 3,146.86

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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.