Home / 7,081.30-10,619.70-2,577.79

Finding the Fourth Proportional to 7,081.30, 10,619.70 and 2,577.79

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Solution

The fourth proportional to 7,081.30, 10,619.70 and 2,577.79 is: 3,865.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.30 : 10,619.70 = 2,577.79 : x
  2. Step 2: Convert to fraction form
    7,081.30/10,619.70 = 2,577.79/x
  3. Step 3: Cross multiply
    7,081.30x = 10,619.70 × 2,577.79
  4. Step 4: Simplify right side
    7,081.30x = 27,375,356.46
  5. Step 5: Solve for x
    x = 27,375,356.46/7,081.30
  6. Step 6: Final answer
    x = 3,865.87

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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.