Home / 4,121.28-5,687.28-2,258.16

Finding the Fourth Proportional to 4,121.28, 5,687.28 and 2,258.16

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Solution

The fourth proportional to 4,121.28, 5,687.28 and 2,258.16 is: 3,116.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.28 : 5,687.28 = 2,258.16 : x
  2. Step 2: Convert to fraction form
    4,121.28/5,687.28 = 2,258.16/x
  3. Step 3: Cross multiply
    4,121.28x = 5,687.28 × 2,258.16
  4. Step 4: Simplify right side
    4,121.28x = 12,842,788.20
  5. Step 5: Solve for x
    x = 12,842,788.20/4,121.28
  6. Step 6: Final answer
    x = 3,116.21

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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.