Home / 3,882.40-5,822.73-1,109.02

Finding the Fourth Proportional to 3,882.40, 5,822.73 and 1,109.02

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Solution

The fourth proportional to 3,882.40, 5,822.73 and 1,109.02 is: 1,663.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.40 : 5,822.73 = 1,109.02 : x
  2. Step 2: Convert to fraction form
    3,882.40/5,822.73 = 1,109.02/x
  3. Step 3: Cross multiply
    3,882.40x = 5,822.73 × 1,109.02
  4. Step 4: Simplify right side
    3,882.40x = 6,457,524.02
  5. Step 5: Solve for x
    x = 6,457,524.02/3,882.40
  6. Step 6: Final answer
    x = 1,663.28

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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.