Home / 3,138.98-4,331.89-1,741.86

Finding the Fourth Proportional to 3,138.98, 4,331.89 and 1,741.86

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Solution

The fourth proportional to 3,138.98, 4,331.89 and 1,741.86 is: 2,403.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.98 : 4,331.89 = 1,741.86 : x
  2. Step 2: Convert to fraction form
    3,138.98/4,331.89 = 1,741.86/x
  3. Step 3: Cross multiply
    3,138.98x = 4,331.89 × 1,741.86
  4. Step 4: Simplify right side
    3,138.98x = 7,545,545.92
  5. Step 5: Solve for x
    x = 7,545,545.92/3,138.98
  6. Step 6: Final answer
    x = 2,403.82

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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.