Home / 6,631.92-9,928.14-4,287.38

Finding the Fourth Proportional to 6,631.92, 9,928.14 and 4,287.38

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Solution

The fourth proportional to 6,631.92, 9,928.14 and 4,287.38 is: 6,418.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.92 : 9,928.14 = 4,287.38 : x
  2. Step 2: Convert to fraction form
    6,631.92/9,928.14 = 4,287.38/x
  3. Step 3: Cross multiply
    6,631.92x = 9,928.14 × 4,287.38
  4. Step 4: Simplify right side
    6,631.92x = 42,565,708.87
  5. Step 5: Solve for x
    x = 42,565,708.87/6,631.92
  6. Step 6: Final answer
    x = 6,418.31

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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.