Home / 3,808.72-5,255.36-2,237.28

Finding the Fourth Proportional to 3,808.72, 5,255.36 and 2,237.28

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Solution

The fourth proportional to 3,808.72, 5,255.36 and 2,237.28 is: 3,087.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.72 : 5,255.36 = 2,237.28 : x
  2. Step 2: Convert to fraction form
    3,808.72/5,255.36 = 2,237.28/x
  3. Step 3: Cross multiply
    3,808.72x = 5,255.36 × 2,237.28
  4. Step 4: Simplify right side
    3,808.72x = 11,757,711.82
  5. Step 5: Solve for x
    x = 11,757,711.82/3,808.72
  6. Step 6: Final answer
    x = 3,087.05

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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.