Home / 4,121.45-6,177.82-1,347.38

Finding the Fourth Proportional to 4,121.45, 6,177.82 and 1,347.38

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Solution

The fourth proportional to 4,121.45, 6,177.82 and 1,347.38 is: 2,019.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.45 : 6,177.82 = 1,347.38 : x
  2. Step 2: Convert to fraction form
    4,121.45/6,177.82 = 1,347.38/x
  3. Step 3: Cross multiply
    4,121.45x = 6,177.82 × 1,347.38
  4. Step 4: Simplify right side
    4,121.45x = 8,323,867.74
  5. Step 5: Solve for x
    x = 8,323,867.74/4,121.45
  6. Step 6: Final answer
    x = 2,019.65

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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.