Home / 6,601.17-9,109.62-3,949.21

Finding the Fourth Proportional to 6,601.17, 9,109.62 and 3,949.21

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Solution

The fourth proportional to 6,601.17, 9,109.62 and 3,949.21 is: 5,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.17 : 9,109.62 = 3,949.21 : x
  2. Step 2: Convert to fraction form
    6,601.17/9,109.62 = 3,949.21/x
  3. Step 3: Cross multiply
    6,601.17x = 9,109.62 × 3,949.21
  4. Step 4: Simplify right side
    6,601.17x = 35,975,737.11
  5. Step 5: Solve for x
    x = 35,975,737.11/6,601.17
  6. Step 6: Final answer
    x = 5,449.90

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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.