Home / 3,175.76-4,382.48-1,997.52

Finding the Fourth Proportional to 3,175.76, 4,382.48 and 1,997.52

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Solution

The fourth proportional to 3,175.76, 4,382.48 and 1,997.52 is: 2,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.76 : 4,382.48 = 1,997.52 : x
  2. Step 2: Convert to fraction form
    3,175.76/4,382.48 = 1,997.52/x
  3. Step 3: Cross multiply
    3,175.76x = 4,382.48 × 1,997.52
  4. Step 4: Simplify right side
    3,175.76x = 8,754,091.45
  5. Step 5: Solve for x
    x = 8,754,091.45/3,175.76
  6. Step 6: Final answer
    x = 2,756.53

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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.