Home / 2,648.88-3,951.36-2,240.64

Finding the Fourth Proportional to 2,648.88, 3,951.36 and 2,240.64

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Solution

The fourth proportional to 2,648.88, 3,951.36 and 2,240.64 is: 3,342.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648.88 : 3,951.36 = 2,240.64 : x
  2. Step 2: Convert to fraction form
    2,648.88/3,951.36 = 2,240.64/x
  3. Step 3: Cross multiply
    2,648.88x = 3,951.36 × 2,240.64
  4. Step 4: Simplify right side
    2,648.88x = 8,853,575.27
  5. Step 5: Solve for x
    x = 8,853,575.27/2,648.88
  6. Step 6: Final answer
    x = 3,342.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.