Home / 3,115.68-4,299.44-1,718.24

Finding the Fourth Proportional to 3,115.68, 4,299.44 and 1,718.24

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Solution

The fourth proportional to 3,115.68, 4,299.44 and 1,718.24 is: 2,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.68 : 4,299.44 = 1,718.24 : x
  2. Step 2: Convert to fraction form
    3,115.68/4,299.44 = 1,718.24/x
  3. Step 3: Cross multiply
    3,115.68x = 4,299.44 × 1,718.24
  4. Step 4: Simplify right side
    3,115.68x = 7,387,469.79
  5. Step 5: Solve for x
    x = 7,387,469.79/3,115.68
  6. Step 6: Final answer
    x = 2,371.06

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1.5x scale

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.