Home / 7,177.38-9,907.92-4,192.08

Finding the Fourth Proportional to 7,177.38, 9,907.92 and 4,192.08

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Solution

The fourth proportional to 7,177.38, 9,907.92 and 4,192.08 is: 5,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.38 : 9,907.92 = 4,192.08 : x
  2. Step 2: Convert to fraction form
    7,177.38/9,907.92 = 4,192.08/x
  3. Step 3: Cross multiply
    7,177.38x = 9,907.92 × 4,192.08
  4. Step 4: Simplify right side
    7,177.38x = 41,534,793.27
  5. Step 5: Solve for x
    x = 41,534,793.27/7,177.38
  6. Step 6: Final answer
    x = 5,786.90

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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.