Home / 2,749.36-4,123.64-801.32

Finding the Fourth Proportional to 2,749.36, 4,123.64 and 801.32

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Solution

The fourth proportional to 2,749.36, 4,123.64 and 801.32 is: 1,201.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.36 : 4,123.64 = 801.32 : x
  2. Step 2: Convert to fraction form
    2,749.36/4,123.64 = 801.32/x
  3. Step 3: Cross multiply
    2,749.36x = 4,123.64 × 801.32
  4. Step 4: Simplify right side
    2,749.36x = 3,304,355.20
  5. Step 5: Solve for x
    x = 3,304,355.20/2,749.36
  6. Step 6: Final answer
    x = 1,201.86

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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.