Home / 6,865.80-9,474.71-3,721.92

Finding the Fourth Proportional to 6,865.80, 9,474.71 and 3,721.92

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Solution

The fourth proportional to 6,865.80, 9,474.71 and 3,721.92 is: 5,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,865.80 : 9,474.71 = 3,721.92 : x
  2. Step 2: Convert to fraction form
    6,865.80/9,474.71 = 3,721.92/x
  3. Step 3: Cross multiply
    6,865.80x = 9,474.71 × 3,721.92
  4. Step 4: Simplify right side
    6,865.80x = 35,264,112.64
  5. Step 5: Solve for x
    x = 35,264,112.64/6,865.80
  6. Step 6: Final answer
    x = 5,136.20

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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.