Home / 3,911.60-5,398.44-2,340.08

Finding the Fourth Proportional to 3,911.60, 5,398.44 and 2,340.08

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Solution

The fourth proportional to 3,911.60, 5,398.44 and 2,340.08 is: 3,229.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.60 : 5,398.44 = 2,340.08 : x
  2. Step 2: Convert to fraction form
    3,911.60/5,398.44 = 2,340.08/x
  3. Step 3: Cross multiply
    3,911.60x = 5,398.44 × 2,340.08
  4. Step 4: Simplify right side
    3,911.60x = 12,632,781.48
  5. Step 5: Solve for x
    x = 12,632,781.48/3,911.60
  6. Step 6: Final answer
    x = 3,229.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.