Home / 6,922.80-9,553.47-3,939.22

Finding the Fourth Proportional to 6,922.80, 9,553.47 and 3,939.22

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Solution

The fourth proportional to 6,922.80, 9,553.47 and 3,939.22 is: 5,436.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.80 : 9,553.47 = 3,939.22 : x
  2. Step 2: Convert to fraction form
    6,922.80/9,553.47 = 3,939.22/x
  3. Step 3: Cross multiply
    6,922.80x = 9,553.47 × 3,939.22
  4. Step 4: Simplify right side
    6,922.80x = 37,633,220.09
  5. Step 5: Solve for x
    x = 37,633,220.09/6,922.80
  6. Step 6: Final answer
    x = 5,436.13

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1.5x scale

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.