Home / 3,555.20-5,331.66-1,182.78

Finding the Fourth Proportional to 3,555.20, 5,331.66 and 1,182.78

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Solution

The fourth proportional to 3,555.20, 5,331.66 and 1,182.78 is: 1,773.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.20 : 5,331.66 = 1,182.78 : x
  2. Step 2: Convert to fraction form
    3,555.20/5,331.66 = 1,182.78/x
  3. Step 3: Cross multiply
    3,555.20x = 5,331.66 × 1,182.78
  4. Step 4: Simplify right side
    3,555.20x = 6,306,180.81
  5. Step 5: Solve for x
    x = 6,306,180.81/3,555.20
  6. Step 6: Final answer
    x = 1,773.79

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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.