Home / 7,761.43-11,635.66-3,078.52

Finding the Fourth Proportional to 7,761.43, 11,635.66 and 3,078.52

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Solution

The fourth proportional to 7,761.43, 11,635.66 and 3,078.52 is: 4,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.43 : 11,635.66 = 3,078.52 : x
  2. Step 2: Convert to fraction form
    7,761.43/11,635.66 = 3,078.52/x
  3. Step 3: Cross multiply
    7,761.43x = 11,635.66 × 3,078.52
  4. Step 4: Simplify right side
    7,761.43x = 35,820,612.02
  5. Step 5: Solve for x
    x = 35,820,612.02/7,761.43
  6. Step 6: Final answer
    x = 4,615.21

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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.