Home / 1,333.32-2,001.18-1,115.31

Finding the Fourth Proportional to 1,333.32, 2,001.18 and 1,115.31

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Solution

The fourth proportional to 1,333.32, 2,001.18 and 1,115.31 is: 1,673.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333.32 : 2,001.18 = 1,115.31 : x
  2. Step 2: Convert to fraction form
    1,333.32/2,001.18 = 1,115.31/x
  3. Step 3: Cross multiply
    1,333.32x = 2,001.18 × 1,115.31
  4. Step 4: Simplify right side
    1,333.32x = 2,231,936.07
  5. Step 5: Solve for x
    x = 2,231,936.07/1,333.32
  6. Step 6: Final answer
    x = 1,673.97

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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.