Home / 1,239.44-1,850.50-1,116.56

Finding the Fourth Proportional to 1,239.44, 1,850.50 and 1,116.56

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Solution

The fourth proportional to 1,239.44, 1,850.50 and 1,116.56 is: 1,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239.44 : 1,850.50 = 1,116.56 : x
  2. Step 2: Convert to fraction form
    1,239.44/1,850.50 = 1,116.56/x
  3. Step 3: Cross multiply
    1,239.44x = 1,850.50 × 1,116.56
  4. Step 4: Simplify right side
    1,239.44x = 2,066,194.28
  5. Step 5: Solve for x
    x = 2,066,194.28/1,239.44
  6. Step 6: Final answer
    x = 1,667.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.