Home / 3,291.89-4,542.66-1,799.78

Finding the Fourth Proportional to 3,291.89, 4,542.66 and 1,799.78

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Solution

The fourth proportional to 3,291.89, 4,542.66 and 1,799.78 is: 2,483.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.89 : 4,542.66 = 1,799.78 : x
  2. Step 2: Convert to fraction form
    3,291.89/4,542.66 = 1,799.78/x
  3. Step 3: Cross multiply
    3,291.89x = 4,542.66 × 1,799.78
  4. Step 4: Simplify right side
    3,291.89x = 8,175,765.90
  5. Step 5: Solve for x
    x = 8,175,765.90/3,291.89
  6. Step 6: Final answer
    x = 2,483.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.