Home / 3,850.14-5,313.56-2,278.47

Finding the Fourth Proportional to 3,850.14, 5,313.56 and 2,278.47

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Solution

The fourth proportional to 3,850.14, 5,313.56 and 2,278.47 is: 3,144.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.14 : 5,313.56 = 2,278.47 : x
  2. Step 2: Convert to fraction form
    3,850.14/5,313.56 = 2,278.47/x
  3. Step 3: Cross multiply
    3,850.14x = 5,313.56 × 2,278.47
  4. Step 4: Simplify right side
    3,850.14x = 12,106,775.66
  5. Step 5: Solve for x
    x = 12,106,775.66/3,850.14
  6. Step 6: Final answer
    x = 3,144.50

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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.