Home / 2,617.16-3,921.10-1,381.84

Finding the Fourth Proportional to 2,617.16, 3,921.10 and 1,381.84

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Solution

The fourth proportional to 2,617.16, 3,921.10 and 1,381.84 is: 2,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.16 : 3,921.10 = 1,381.84 : x
  2. Step 2: Convert to fraction form
    2,617.16/3,921.10 = 1,381.84/x
  3. Step 3: Cross multiply
    2,617.16x = 3,921.10 × 1,381.84
  4. Step 4: Simplify right side
    2,617.16x = 5,418,319.57
  5. Step 5: Solve for x
    x = 5,418,319.57/2,617.16
  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.