Home / 1,257.35-1,735.98-1,124.14

Finding the Fourth Proportional to 1,257.35, 1,735.98 and 1,124.14

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Solution

The fourth proportional to 1,257.35, 1,735.98 and 1,124.14 is: 1,552.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257.35 : 1,735.98 = 1,124.14 : x
  2. Step 2: Convert to fraction form
    1,257.35/1,735.98 = 1,124.14/x
  3. Step 3: Cross multiply
    1,257.35x = 1,735.98 × 1,124.14
  4. Step 4: Simplify right side
    1,257.35x = 1,951,480.70
  5. Step 5: Solve for x
    x = 1,951,480.70/1,257.35
  6. Step 6: Final answer
    x = 1,552.06

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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.