Home / 1,258.05-1,884.20-1,230.69

Finding the Fourth Proportional to 1,258.05, 1,884.20 and 1,230.69

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Solution

The fourth proportional to 1,258.05, 1,884.20 and 1,230.69 is: 1,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.05 : 1,884.20 = 1,230.69 : x
  2. Step 2: Convert to fraction form
    1,258.05/1,884.20 = 1,230.69/x
  3. Step 3: Cross multiply
    1,258.05x = 1,884.20 × 1,230.69
  4. Step 4: Simplify right side
    1,258.05x = 2,318,859.94
  5. Step 5: Solve for x
    x = 2,318,859.94/1,258.05
  6. Step 6: Final answer
    x = 1,843.22

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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.