Home / 3,319.38-4,975.97-1,126.57

Finding the Fourth Proportional to 3,319.38, 4,975.97 and 1,126.57

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Solution

The fourth proportional to 3,319.38, 4,975.97 and 1,126.57 is: 1,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.38 : 4,975.97 = 1,126.57 : x
  2. Step 2: Convert to fraction form
    3,319.38/4,975.97 = 1,126.57/x
  3. Step 3: Cross multiply
    3,319.38x = 4,975.97 × 1,126.57
  4. Step 4: Simplify right side
    3,319.38x = 5,605,778.52
  5. Step 5: Solve for x
    x = 5,605,778.52/3,319.38
  6. Step 6: Final answer
    x = 1,688.80

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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.