Home / 7,982.40-11,974.88-2,360.64

Finding the Fourth Proportional to 7,982.40, 11,974.88 and 2,360.64

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Solution

The fourth proportional to 7,982.40, 11,974.88 and 2,360.64 is: 3,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.40 : 11,974.88 = 2,360.64 : x
  2. Step 2: Convert to fraction form
    7,982.40/11,974.88 = 2,360.64/x
  3. Step 3: Cross multiply
    7,982.40x = 11,974.88 × 2,360.64
  4. Step 4: Simplify right side
    7,982.40x = 28,268,380.72
  5. Step 5: Solve for x
    x = 28,268,380.72/7,982.40
  6. Step 6: Final answer
    x = 3,541.34

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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.