Home / 2,797.20-3,859.80-1,618.16

Finding the Fourth Proportional to 2,797.20, 3,859.80 and 1,618.16

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Solution

The fourth proportional to 2,797.20, 3,859.80 and 1,618.16 is: 2,232.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,797.20 : 3,859.80 = 1,618.16 : x
  2. Step 2: Convert to fraction form
    2,797.20/3,859.80 = 1,618.16/x
  3. Step 3: Cross multiply
    2,797.20x = 3,859.80 × 1,618.16
  4. Step 4: Simplify right side
    2,797.20x = 6,245,773.97
  5. Step 5: Solve for x
    x = 6,245,773.97/2,797.20
  6. Step 6: Final answer
    x = 2,232.87

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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.