Home / 3,972.60-5,947.92-2,015.28

Finding the Fourth Proportional to 3,972.60, 5,947.92 and 2,015.28

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Solution

The fourth proportional to 3,972.60, 5,947.92 and 2,015.28 is: 3,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.60 : 5,947.92 = 2,015.28 : x
  2. Step 2: Convert to fraction form
    3,972.60/5,947.92 = 2,015.28/x
  3. Step 3: Cross multiply
    3,972.60x = 5,947.92 × 2,015.28
  4. Step 4: Simplify right side
    3,972.60x = 11,986,724.22
  5. Step 5: Solve for x
    x = 11,986,724.22/3,972.60
  6. Step 6: Final answer
    x = 3,017.35

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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.