Home / 3,895.16-5,374.38-2,216.18

Finding the Fourth Proportional to 3,895.16, 5,374.38 and 2,216.18

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Solution

The fourth proportional to 3,895.16, 5,374.38 and 2,216.18 is: 3,057.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.16 : 5,374.38 = 2,216.18 : x
  2. Step 2: Convert to fraction form
    3,895.16/5,374.38 = 2,216.18/x
  3. Step 3: Cross multiply
    3,895.16x = 5,374.38 × 2,216.18
  4. Step 4: Simplify right side
    3,895.16x = 11,910,593.47
  5. Step 5: Solve for x
    x = 11,910,593.47/3,895.16
  6. Step 6: Final answer
    x = 3,057.79

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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.