Home / 2,648.21-3,972.38-2,260.89

Finding the Fourth Proportional to 2,648.21, 3,972.38 and 2,260.89

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Solution

The fourth proportional to 2,648.21, 3,972.38 and 2,260.89 is: 3,391.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648.21 : 3,972.38 = 2,260.89 : x
  2. Step 2: Convert to fraction form
    2,648.21/3,972.38 = 2,260.89/x
  3. Step 3: Cross multiply
    2,648.21x = 3,972.38 × 2,260.89
  4. Step 4: Simplify right side
    2,648.21x = 8,981,102.91
  5. Step 5: Solve for x
    x = 8,981,102.91/2,648.21
  6. Step 6: Final answer
    x = 3,391.39

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1.5x scale

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.