Home / 6,123.20-8,449.36-3,605.14

Finding the Fourth Proportional to 6,123.20, 8,449.36 and 3,605.14

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Solution

The fourth proportional to 6,123.20, 8,449.36 and 3,605.14 is: 4,974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,123.20 : 8,449.36 = 3,605.14 : x
  2. Step 2: Convert to fraction form
    6,123.20/8,449.36 = 3,605.14/x
  3. Step 3: Cross multiply
    6,123.20x = 8,449.36 × 3,605.14
  4. Step 4: Simplify right side
    6,123.20x = 30,461,147.54
  5. Step 5: Solve for x
    x = 30,461,147.54/6,123.20
  6. Step 6: Final answer
    x = 4,974.71

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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.