Home / 3,921.60-5,409-2,524.08

Finding the Fourth Proportional to 3,921.60, 5,409 and 2,524.08

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Solution

The fourth proportional to 3,921.60, 5,409 and 2,524.08 is: 3,481.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.60 : 5,409 = 2,524.08 : x
  2. Step 2: Convert to fraction form
    3,921.60/5,409 = 2,524.08/x
  3. Step 3: Cross multiply
    3,921.60x = 5,409 × 2,524.08
  4. Step 4: Simplify right side
    3,921.60x = 13,652,748.72
  5. Step 5: Solve for x
    x = 13,652,748.72/3,921.60
  6. Step 6: Final answer
    x = 3,481.42

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1.5x scale

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.