Home / 3,902.58-5,856.18-1,439.12

Finding the Fourth Proportional to 3,902.58, 5,856.18 and 1,439.12

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Solution

The fourth proportional to 3,902.58, 5,856.18 and 1,439.12 is: 2,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.58 : 5,856.18 = 1,439.12 : x
  2. Step 2: Convert to fraction form
    3,902.58/5,856.18 = 1,439.12/x
  3. Step 3: Cross multiply
    3,902.58x = 5,856.18 × 1,439.12
  4. Step 4: Simplify right side
    3,902.58x = 8,427,716.48
  5. Step 5: Solve for x
    x = 8,427,716.48/3,902.58
  6. Step 6: Final answer
    x = 2,159.52

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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.