Home / 3,489.65-5,236.28-2,320.48

Finding the Fourth Proportional to 3,489.65, 5,236.28 and 2,320.48

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Solution

The fourth proportional to 3,489.65, 5,236.28 and 2,320.48 is: 3,481.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.65 : 5,236.28 = 2,320.48 : x
  2. Step 2: Convert to fraction form
    3,489.65/5,236.28 = 2,320.48/x
  3. Step 3: Cross multiply
    3,489.65x = 5,236.28 × 2,320.48
  4. Step 4: Simplify right side
    3,489.65x = 12,150,686.66
  5. Step 5: Solve for x
    x = 12,150,686.66/3,489.65
  6. Step 6: Final answer
    x = 3,481.92

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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.