Home / 3,621.38-4,997.56-1,965.38

Finding the Fourth Proportional to 3,621.38, 4,997.56 and 1,965.38

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Solution

The fourth proportional to 3,621.38, 4,997.56 and 1,965.38 is: 2,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.38 : 4,997.56 = 1,965.38 : x
  2. Step 2: Convert to fraction form
    3,621.38/4,997.56 = 1,965.38/x
  3. Step 3: Cross multiply
    3,621.38x = 4,997.56 × 1,965.38
  4. Step 4: Simplify right side
    3,621.38x = 9,822,074.57
  5. Step 5: Solve for x
    x = 9,822,074.57/3,621.38
  6. Step 6: Final answer
    x = 2,712.25

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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.