Home / 3,928.16-5,419.48-2,434.52

Finding the Fourth Proportional to 3,928.16, 5,419.48 and 2,434.52

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Solution

The fourth proportional to 3,928.16, 5,419.48 and 2,434.52 is: 3,358.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.16 : 5,419.48 = 2,434.52 : x
  2. Step 2: Convert to fraction form
    3,928.16/5,419.48 = 2,434.52/x
  3. Step 3: Cross multiply
    3,928.16x = 5,419.48 × 2,434.52
  4. Step 4: Simplify right side
    3,928.16x = 13,193,832.45
  5. Step 5: Solve for x
    x = 13,193,832.45/3,928.16
  6. Step 6: Final answer
    x = 3,358.78

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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.