Home / 7,320.68-10,987.19-3,163.83

Finding the Fourth Proportional to 7,320.68, 10,987.19 and 3,163.83

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Solution

The fourth proportional to 7,320.68, 10,987.19 and 3,163.83 is: 4,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.68 : 10,987.19 = 3,163.83 : x
  2. Step 2: Convert to fraction form
    7,320.68/10,987.19 = 3,163.83/x
  3. Step 3: Cross multiply
    7,320.68x = 10,987.19 × 3,163.83
  4. Step 4: Simplify right side
    7,320.68x = 34,761,585.52
  5. Step 5: Solve for x
    x = 34,761,585.52/7,320.68
  6. Step 6: Final answer
    x = 4,748.41

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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.