Home / 3,115.22-4,299.02-1,717.96

Finding the Fourth Proportional to 3,115.22, 4,299.02 and 1,717.96

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Solution

The fourth proportional to 3,115.22, 4,299.02 and 1,717.96 is: 2,370.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.22 : 4,299.02 = 1,717.96 : x
  2. Step 2: Convert to fraction form
    3,115.22/4,299.02 = 1,717.96/x
  3. Step 3: Cross multiply
    3,115.22x = 4,299.02 × 1,717.96
  4. Step 4: Simplify right side
    3,115.22x = 7,385,544.40
  5. Step 5: Solve for x
    x = 7,385,544.40/3,115.22
  6. Step 6: Final answer
    x = 2,370.79

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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.