Home / 3,391.38-5,110.17-2,788.58

Finding the Fourth Proportional to 3,391.38, 5,110.17 and 2,788.58

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Solution

The fourth proportional to 3,391.38, 5,110.17 and 2,788.58 is: 4,201.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.38 : 5,110.17 = 2,788.58 : x
  2. Step 2: Convert to fraction form
    3,391.38/5,110.17 = 2,788.58/x
  3. Step 3: Cross multiply
    3,391.38x = 5,110.17 × 2,788.58
  4. Step 4: Simplify right side
    3,391.38x = 14,250,130.63
  5. Step 5: Solve for x
    x = 14,250,130.63/3,391.38
  6. Step 6: Final answer
    x = 4,201.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.