Home / 1,112.89-1,535.21-1,033.73

Finding the Fourth Proportional to 1,112.89, 1,535.21 and 1,033.73

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Solution

The fourth proportional to 1,112.89, 1,535.21 and 1,033.73 is: 1,426.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.89 : 1,535.21 = 1,033.73 : x
  2. Step 2: Convert to fraction form
    1,112.89/1,535.21 = 1,033.73/x
  3. Step 3: Cross multiply
    1,112.89x = 1,535.21 × 1,033.73
  4. Step 4: Simplify right side
    1,112.89x = 1,586,992.63
  5. Step 5: Solve for x
    x = 1,586,992.63/1,112.89
  6. Step 6: Final answer
    x = 1,426.01

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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.