Home / 3,187.70-4,388.24-2,627.28

Finding the Fourth Proportional to 3,187.70, 4,388.24 and 2,627.28

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Solution

The fourth proportional to 3,187.70, 4,388.24 and 2,627.28 is: 3,616.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.70 : 4,388.24 = 2,627.28 : x
  2. Step 2: Convert to fraction form
    3,187.70/4,388.24 = 2,627.28/x
  3. Step 3: Cross multiply
    3,187.70x = 4,388.24 × 2,627.28
  4. Step 4: Simplify right side
    3,187.70x = 11,529,141.76
  5. Step 5: Solve for x
    x = 11,529,141.76/3,187.70
  6. Step 6: Final answer
    x = 3,616.76

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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.