Home / 1,149.31-1,583.89-1,036.11

Finding the Fourth Proportional to 1,149.31, 1,583.89 and 1,036.11

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Solution

The fourth proportional to 1,149.31, 1,583.89 and 1,036.11 is: 1,427.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.31 : 1,583.89 = 1,036.11 : x
  2. Step 2: Convert to fraction form
    1,149.31/1,583.89 = 1,036.11/x
  3. Step 3: Cross multiply
    1,149.31x = 1,583.89 × 1,036.11
  4. Step 4: Simplify right side
    1,149.31x = 1,641,087.62
  5. Step 5: Solve for x
    x = 1,641,087.62/1,149.31
  6. Step 6: Final answer
    x = 1,427.89

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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.