Home / 3,912.03-5,398.68-2,419.92

Finding the Fourth Proportional to 3,912.03, 5,398.68 and 2,419.92

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Solution

The fourth proportional to 3,912.03, 5,398.68 and 2,419.92 is: 3,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.03 : 5,398.68 = 2,419.92 : x
  2. Step 2: Convert to fraction form
    3,912.03/5,398.68 = 2,419.92/x
  3. Step 3: Cross multiply
    3,912.03x = 5,398.68 × 2,419.92
  4. Step 4: Simplify right side
    3,912.03x = 13,064,373.71
  5. Step 5: Solve for x
    x = 13,064,373.71/3,912.03
  6. Step 6: Final answer
    x = 3,339.54

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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.