Home / 4,945.15-6,821.23-3,057.31

Finding the Fourth Proportional to 4,945.15, 6,821.23 and 3,057.31

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Solution

The fourth proportional to 4,945.15, 6,821.23 and 3,057.31 is: 4,217.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.15 : 6,821.23 = 3,057.31 : x
  2. Step 2: Convert to fraction form
    4,945.15/6,821.23 = 3,057.31/x
  3. Step 3: Cross multiply
    4,945.15x = 6,821.23 × 3,057.31
  4. Step 4: Simplify right side
    4,945.15x = 20,854,572.94
  5. Step 5: Solve for x
    x = 20,854,572.94/4,945.15
  6. Step 6: Final answer
    x = 4,217.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.