Home / 7,179.38-9,908.47-4,035.57

Finding the Fourth Proportional to 7,179.38, 9,908.47 and 4,035.57

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Solution

The fourth proportional to 7,179.38, 9,908.47 and 4,035.57 is: 5,569.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.38 : 9,908.47 = 4,035.57 : x
  2. Step 2: Convert to fraction form
    7,179.38/9,908.47 = 4,035.57/x
  3. Step 3: Cross multiply
    7,179.38x = 9,908.47 × 4,035.57
  4. Step 4: Simplify right side
    7,179.38x = 39,986,324.28
  5. Step 5: Solve for x
    x = 39,986,324.28/7,179.38
  6. Step 6: Final answer
    x = 5,569.61

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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.