Home / 1,474.74-2,212.92-1,242.54

Finding the Fourth Proportional to 1,474.74, 2,212.92 and 1,242.54

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Solution

The fourth proportional to 1,474.74, 2,212.92 and 1,242.54 is: 1,864.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.74 : 2,212.92 = 1,242.54 : x
  2. Step 2: Convert to fraction form
    1,474.74/2,212.92 = 1,242.54/x
  3. Step 3: Cross multiply
    1,474.74x = 2,212.92 × 1,242.54
  4. Step 4: Simplify right side
    1,474.74x = 2,749,641.62
  5. Step 5: Solve for x
    x = 2,749,641.62/1,474.74
  6. Step 6: Final answer
    x = 1,864.49

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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.