Home / 3,840.48-5,761.44-1,243.08

Finding the Fourth Proportional to 3,840.48, 5,761.44 and 1,243.08

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Solution

The fourth proportional to 3,840.48, 5,761.44 and 1,243.08 is: 1,864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.48 : 5,761.44 = 1,243.08 : x
  2. Step 2: Convert to fraction form
    3,840.48/5,761.44 = 1,243.08/x
  3. Step 3: Cross multiply
    3,840.48x = 5,761.44 × 1,243.08
  4. Step 4: Simplify right side
    3,840.48x = 7,161,930.84
  5. Step 5: Solve for x
    x = 7,161,930.84/3,840.48
  6. Step 6: Final answer
    x = 1,864.85

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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.