Home / 2,657.12-3,983.48-1,269.76

Finding the Fourth Proportional to 2,657.12, 3,983.48 and 1,269.76

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Solution

The fourth proportional to 2,657.12, 3,983.48 and 1,269.76 is: 1,903.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.12 : 3,983.48 = 1,269.76 : x
  2. Step 2: Convert to fraction form
    2,657.12/3,983.48 = 1,269.76/x
  3. Step 3: Cross multiply
    2,657.12x = 3,983.48 × 1,269.76
  4. Step 4: Simplify right side
    2,657.12x = 5,058,063.56
  5. Step 5: Solve for x
    x = 5,058,063.56/2,657.12
  6. Step 6: Final answer
    x = 1,903.59

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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.