Home / 2,617.15-3,921.11-1,381.83

Finding the Fourth Proportional to 2,617.15, 3,921.11 and 1,381.83

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Solution

The fourth proportional to 2,617.15, 3,921.11 and 1,381.83 is: 2,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.15 : 3,921.11 = 1,381.83 : x
  2. Step 2: Convert to fraction form
    2,617.15/3,921.11 = 1,381.83/x
  3. Step 3: Cross multiply
    2,617.15x = 3,921.11 × 1,381.83
  4. Step 4: Simplify right side
    2,617.15x = 5,418,313.06
  5. Step 5: Solve for x
    x = 5,418,313.06/2,617.15
  6. Step 6: Final answer
    x = 2,070.31

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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.