Home / 3,899.65-5,381.06-2,197.83

Finding the Fourth Proportional to 3,899.65, 5,381.06 and 2,197.83

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Solution

The fourth proportional to 3,899.65, 5,381.06 and 2,197.83 is: 3,032.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.65 : 5,381.06 = 2,197.83 : x
  2. Step 2: Convert to fraction form
    3,899.65/5,381.06 = 2,197.83/x
  3. Step 3: Cross multiply
    3,899.65x = 5,381.06 × 2,197.83
  4. Step 4: Simplify right side
    3,899.65x = 11,826,655.10
  5. Step 5: Solve for x
    x = 11,826,655.10/3,899.65
  6. Step 6: Final answer
    x = 3,032.75

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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.