Home / 3,899.67-5,381.40-2,326.65

Finding the Fourth Proportional to 3,899.67, 5,381.40 and 2,326.65

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Solution

The fourth proportional to 3,899.67, 5,381.40 and 2,326.65 is: 3,210.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.67 : 5,381.40 = 2,326.65 : x
  2. Step 2: Convert to fraction form
    3,899.67/5,381.40 = 2,326.65/x
  3. Step 3: Cross multiply
    3,899.67x = 5,381.40 × 2,326.65
  4. Step 4: Simplify right side
    3,899.67x = 12,520,634.31
  5. Step 5: Solve for x
    x = 12,520,634.31/3,899.67
  6. Step 6: Final answer
    x = 3,210.69

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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.