Home / 2,885.70-4,331.79-1,155.54

Finding the Fourth Proportional to 2,885.70, 4,331.79 and 1,155.54

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Solution

The fourth proportional to 2,885.70, 4,331.79 and 1,155.54 is: 1,734.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.70 : 4,331.79 = 1,155.54 : x
  2. Step 2: Convert to fraction form
    2,885.70/4,331.79 = 1,155.54/x
  3. Step 3: Cross multiply
    2,885.70x = 4,331.79 × 1,155.54
  4. Step 4: Simplify right side
    2,885.70x = 5,005,556.62
  5. Step 5: Solve for x
    x = 5,005,556.62/2,885.70
  6. Step 6: Final answer
    x = 1,734.61

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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.