Home / 3,716.48-5,128.79-2,224.46

Finding the Fourth Proportional to 3,716.48, 5,128.79 and 2,224.46

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Solution

The fourth proportional to 3,716.48, 5,128.79 and 2,224.46 is: 3,069.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.48 : 5,128.79 = 2,224.46 : x
  2. Step 2: Convert to fraction form
    3,716.48/5,128.79 = 2,224.46/x
  3. Step 3: Cross multiply
    3,716.48x = 5,128.79 × 2,224.46
  4. Step 4: Simplify right side
    3,716.48x = 11,408,762.56
  5. Step 5: Solve for x
    x = 11,408,762.56/3,716.48
  6. Step 6: Final answer
    x = 3,069.78

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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.