Home / 5,449.20-8,182.00-3,111.85

Finding the Fourth Proportional to 5,449.20, 8,182.00 and 3,111.85

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Solution

The fourth proportional to 5,449.20, 8,182.00 and 3,111.85 is: 4,672.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.20 : 8,182.00 = 3,111.85 : x
  2. Step 2: Convert to fraction form
    5,449.20/8,182.00 = 3,111.85/x
  3. Step 3: Cross multiply
    5,449.20x = 8,182.00 × 3,111.85
  4. Step 4: Simplify right side
    5,449.20x = 25,461,123.57
  5. Step 5: Solve for x
    x = 25,461,123.57/5,449.20
  6. Step 6: Final answer
    x = 4,672.45

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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.