Home / 1,112.39-1,535.60-799.23

Finding the Fourth Proportional to 1,112.39, 1,535.60 and 799.23

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Solution

The fourth proportional to 1,112.39, 1,535.60 and 799.23 is: 1,103.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.39 : 1,535.60 = 799.23 : x
  2. Step 2: Convert to fraction form
    1,112.39/1,535.60 = 799.23/x
  3. Step 3: Cross multiply
    1,112.39x = 1,535.60 × 799.23
  4. Step 4: Simplify right side
    1,112.39x = 1,227,293.83
  5. Step 5: Solve for x
    x = 1,227,293.83/1,112.39
  6. Step 6: Final answer
    x = 1,103.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.