Home / 7,279.46-10,919.10-2,085.38

Finding the Fourth Proportional to 7,279.46, 10,919.10 and 2,085.38

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Solution

The fourth proportional to 7,279.46, 10,919.10 and 2,085.38 is: 3,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.46 : 10,919.10 = 2,085.38 : x
  2. Step 2: Convert to fraction form
    7,279.46/10,919.10 = 2,085.38/x
  3. Step 3: Cross multiply
    7,279.46x = 10,919.10 × 2,085.38
  4. Step 4: Simplify right side
    7,279.46x = 22,770,472.76
  5. Step 5: Solve for x
    x = 22,770,472.76/7,279.46
  6. Step 6: Final answer
    x = 3,128.04

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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.