Home / 3,927.57-5,420.05-2,249.00

Finding the Fourth Proportional to 3,927.57, 5,420.05 and 2,249.00

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Solution

The fourth proportional to 3,927.57, 5,420.05 and 2,249.00 is: 3,103.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.57 : 5,420.05 = 2,249.00 : x
  2. Step 2: Convert to fraction form
    3,927.57/5,420.05 = 2,249.00/x
  3. Step 3: Cross multiply
    3,927.57x = 5,420.05 × 2,249.00
  4. Step 4: Simplify right side
    3,927.57x = 12,189,665.35
  5. Step 5: Solve for x
    x = 12,189,665.35/3,927.57
  6. Step 6: Final answer
    x = 3,103.62

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1.5x scale

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.