Home / 3,871.98-5,344.65-2,379.96

Finding the Fourth Proportional to 3,871.98, 5,344.65 and 2,379.96

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Solution

The fourth proportional to 3,871.98, 5,344.65 and 2,379.96 is: 3,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.98 : 5,344.65 = 2,379.96 : x
  2. Step 2: Convert to fraction form
    3,871.98/5,344.65 = 2,379.96/x
  3. Step 3: Cross multiply
    3,871.98x = 5,344.65 × 2,379.96
  4. Step 4: Simplify right side
    3,871.98x = 12,720,053.21
  5. Step 5: Solve for x
    x = 12,720,053.21/3,871.98
  6. Step 6: Final answer
    x = 3,285.15

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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.