Home / 4,121.98-5,687.75-2,329.16

Finding the Fourth Proportional to 4,121.98, 5,687.75 and 2,329.16

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Solution

The fourth proportional to 4,121.98, 5,687.75 and 2,329.16 is: 3,213.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.98 : 5,687.75 = 2,329.16 : x
  2. Step 2: Convert to fraction form
    4,121.98/5,687.75 = 2,329.16/x
  3. Step 3: Cross multiply
    4,121.98x = 5,687.75 × 2,329.16
  4. Step 4: Simplify right side
    4,121.98x = 13,247,657.17
  5. Step 5: Solve for x
    x = 13,247,657.17/4,121.98
  6. Step 6: Final answer
    x = 3,213.91

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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.