Home / 3,904.44-5,387.94-2,135.94

Finding the Fourth Proportional to 3,904.44, 5,387.94 and 2,135.94

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Solution

The fourth proportional to 3,904.44, 5,387.94 and 2,135.94 is: 2,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.44 : 5,387.94 = 2,135.94 : x
  2. Step 2: Convert to fraction form
    3,904.44/5,387.94 = 2,135.94/x
  3. Step 3: Cross multiply
    3,904.44x = 5,387.94 × 2,135.94
  4. Step 4: Simplify right side
    3,904.44x = 11,508,316.56
  5. Step 5: Solve for x
    x = 11,508,316.56/3,904.44
  6. Step 6: Final answer
    x = 2,947.49

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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.