Home / 2,927.85-4,391.83-1,078.01

Finding the Fourth Proportional to 2,927.85, 4,391.83 and 1,078.01

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Solution

The fourth proportional to 2,927.85, 4,391.83 and 1,078.01 is: 1,617.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.85 : 4,391.83 = 1,078.01 : x
  2. Step 2: Convert to fraction form
    2,927.85/4,391.83 = 1,078.01/x
  3. Step 3: Cross multiply
    2,927.85x = 4,391.83 × 1,078.01
  4. Step 4: Simplify right side
    2,927.85x = 4,734,450.33
  5. Step 5: Solve for x
    x = 4,734,450.33/2,927.85
  6. Step 6: Final answer
    x = 1,617.04

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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.