Home / 4,754.80-7,128.33-1,983.55

Finding the Fourth Proportional to 4,754.80, 7,128.33 and 1,983.55

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Solution

The fourth proportional to 4,754.80, 7,128.33 and 1,983.55 is: 2,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,754.80 : 7,128.33 = 1,983.55 : x
  2. Step 2: Convert to fraction form
    4,754.80/7,128.33 = 1,983.55/x
  3. Step 3: Cross multiply
    4,754.80x = 7,128.33 × 1,983.55
  4. Step 4: Simplify right side
    4,754.80x = 14,139,398.97
  5. Step 5: Solve for x
    x = 14,139,398.97/4,754.80
  6. Step 6: Final answer
    x = 2,973.71

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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.