Home / 4,121.21-5,687.25-2,258.21

Finding the Fourth Proportional to 4,121.21, 5,687.25 and 2,258.21

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Solution

The fourth proportional to 4,121.21, 5,687.25 and 2,258.21 is: 3,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.21 : 5,687.25 = 2,258.21 : x
  2. Step 2: Convert to fraction form
    4,121.21/5,687.25 = 2,258.21/x
  3. Step 3: Cross multiply
    4,121.21x = 5,687.25 × 2,258.21
  4. Step 4: Simplify right side
    4,121.21x = 12,843,004.82
  5. Step 5: Solve for x
    x = 12,843,004.82/4,121.21
  6. Step 6: Final answer
    x = 3,116.32

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Half scale
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Double scale
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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.