Home / 5,270.31-7,904.55-1,983.43

Finding the Fourth Proportional to 5,270.31, 7,904.55 and 1,983.43

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Solution

The fourth proportional to 5,270.31, 7,904.55 and 1,983.43 is: 2,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.31 : 7,904.55 = 1,983.43 : x
  2. Step 2: Convert to fraction form
    5,270.31/7,904.55 = 1,983.43/x
  3. Step 3: Cross multiply
    5,270.31x = 7,904.55 × 1,983.43
  4. Step 4: Simplify right side
    5,270.31x = 15,678,101.85
  5. Step 5: Solve for x
    x = 15,678,101.85/5,270.31
  6. Step 6: Final answer
    x = 2,974.80

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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.