Home / 4,721.15-7,080.68-2,865.61

Finding the Fourth Proportional to 4,721.15, 7,080.68 and 2,865.61

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Solution

The fourth proportional to 4,721.15, 7,080.68 and 2,865.61 is: 4,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.15 : 7,080.68 = 2,865.61 : x
  2. Step 2: Convert to fraction form
    4,721.15/7,080.68 = 2,865.61/x
  3. Step 3: Cross multiply
    4,721.15x = 7,080.68 × 2,865.61
  4. Step 4: Simplify right side
    4,721.15x = 20,290,483.43
  5. Step 5: Solve for x
    x = 20,290,483.43/4,721.15
  6. Step 6: Final answer
    x = 4,297.78

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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.