Home / 2,747.20-4,115.40-1,648.32

Finding the Fourth Proportional to 2,747.20, 4,115.40 and 1,648.32

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Solution

The fourth proportional to 2,747.20, 4,115.40 and 1,648.32 is: 2,469.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.20 : 4,115.40 = 1,648.32 : x
  2. Step 2: Convert to fraction form
    2,747.20/4,115.40 = 1,648.32/x
  3. Step 3: Cross multiply
    2,747.20x = 4,115.40 × 1,648.32
  4. Step 4: Simplify right side
    2,747.20x = 6,783,496.13
  5. Step 5: Solve for x
    x = 6,783,496.13/2,747.20
  6. Step 6: Final answer
    x = 2,469.24

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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.