Home / 3,927.52-5,420.28-2,249.45

Finding the Fourth Proportional to 3,927.52, 5,420.28 and 2,249.45

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Solution

The fourth proportional to 3,927.52, 5,420.28 and 2,249.45 is: 3,104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.52 : 5,420.28 = 2,249.45 : x
  2. Step 2: Convert to fraction form
    3,927.52/5,420.28 = 2,249.45/x
  3. Step 3: Cross multiply
    3,927.52x = 5,420.28 × 2,249.45
  4. Step 4: Simplify right side
    3,927.52x = 12,192,662.40
  5. Step 5: Solve for x
    x = 12,192,662.40/3,927.52
  6. Step 6: Final answer
    x = 3,104.42

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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.