Home / 2,921.85-4,377.92-2,054.34

Finding the Fourth Proportional to 2,921.85, 4,377.92 and 2,054.34

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Solution

The fourth proportional to 2,921.85, 4,377.92 and 2,054.34 is: 3,078.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.85 : 4,377.92 = 2,054.34 : x
  2. Step 2: Convert to fraction form
    2,921.85/4,377.92 = 2,054.34/x
  3. Step 3: Cross multiply
    2,921.85x = 4,377.92 × 2,054.34
  4. Step 4: Simplify right side
    2,921.85x = 8,993,725.90
  5. Step 5: Solve for x
    x = 8,993,725.90/2,921.85
  6. Step 6: Final answer
    x = 3,078.09

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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.