Home / 4,888.80-6,744.89-3,121.43

Finding the Fourth Proportional to 4,888.80, 6,744.89 and 3,121.43

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Solution

The fourth proportional to 4,888.80, 6,744.89 and 3,121.43 is: 4,306.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.80 : 6,744.89 = 3,121.43 : x
  2. Step 2: Convert to fraction form
    4,888.80/6,744.89 = 3,121.43/x
  3. Step 3: Cross multiply
    4,888.80x = 6,744.89 × 3,121.43
  4. Step 4: Simplify right side
    4,888.80x = 21,053,676.07
  5. Step 5: Solve for x
    x = 21,053,676.07/4,888.80
  6. Step 6: Final answer
    x = 4,306.51

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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.