Home / 7,841.90-11,761.71-2,577.11

Finding the Fourth Proportional to 7,841.90, 11,761.71 and 2,577.11

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Solution

The fourth proportional to 7,841.90, 11,761.71 and 2,577.11 is: 3,865.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,841.90 : 11,761.71 = 2,577.11 : x
  2. Step 2: Convert to fraction form
    7,841.90/11,761.71 = 2,577.11/x
  3. Step 3: Cross multiply
    7,841.90x = 11,761.71 × 2,577.11
  4. Step 4: Simplify right side
    7,841.90x = 30,311,220.46
  5. Step 5: Solve for x
    x = 30,311,220.46/7,841.90
  6. Step 6: Final answer
    x = 3,865.29

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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.