Home / 4,945.77-7,420.22-2,174.78

Finding the Fourth Proportional to 4,945.77, 7,420.22 and 2,174.78

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Solution

The fourth proportional to 4,945.77, 7,420.22 and 2,174.78 is: 3,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.77 : 7,420.22 = 2,174.78 : x
  2. Step 2: Convert to fraction form
    4,945.77/7,420.22 = 2,174.78/x
  3. Step 3: Cross multiply
    4,945.77x = 7,420.22 × 2,174.78
  4. Step 4: Simplify right side
    4,945.77x = 16,137,298.08
  5. Step 5: Solve for x
    x = 16,137,298.08/4,945.77
  6. Step 6: Final answer
    x = 3,262.85

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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.