Home / 4,079.28-5,629.38-2,216.28

Finding the Fourth Proportional to 4,079.28, 5,629.38 and 2,216.28

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Solution

The fourth proportional to 4,079.28, 5,629.38 and 2,216.28 is: 3,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.28 : 5,629.38 = 2,216.28 : x
  2. Step 2: Convert to fraction form
    4,079.28/5,629.38 = 2,216.28/x
  3. Step 3: Cross multiply
    4,079.28x = 5,629.38 × 2,216.28
  4. Step 4: Simplify right side
    4,079.28x = 12,476,282.31
  5. Step 5: Solve for x
    x = 12,476,282.31/4,079.28
  6. Step 6: Final answer
    x = 3,058.45

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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.