Home / 3,412.68-5,115.12-1,659.37

Finding the Fourth Proportional to 3,412.68, 5,115.12 and 1,659.37

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Solution

The fourth proportional to 3,412.68, 5,115.12 and 1,659.37 is: 2,487.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.68 : 5,115.12 = 1,659.37 : x
  2. Step 2: Convert to fraction form
    3,412.68/5,115.12 = 1,659.37/x
  3. Step 3: Cross multiply
    3,412.68x = 5,115.12 × 1,659.37
  4. Step 4: Simplify right side
    3,412.68x = 8,487,876.67
  5. Step 5: Solve for x
    x = 8,487,876.67/3,412.68
  6. Step 6: Final answer
    x = 2,487.16

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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.