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Finding the Fourth Proportional to 3,722.27, 5,583.60 and 1,258.70

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Solution

The fourth proportional to 3,722.27, 5,583.60 and 1,258.70 is: 1,888.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.27 : 5,583.60 = 1,258.70 : x
  2. Step 2: Convert to fraction form
    3,722.27/5,583.60 = 1,258.70/x
  3. Step 3: Cross multiply
    3,722.27x = 5,583.60 × 1,258.70
  4. Step 4: Simplify right side
    3,722.27x = 7,028,049.40
  5. Step 5: Solve for x
    x = 7,028,049.40/3,722.27
  6. Step 6: Final answer
    x = 1,888.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.