Home / 3,849.86-5,313.40-2,278.46

Finding the Fourth Proportional to 3,849.86, 5,313.40 and 2,278.46

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Solution

The fourth proportional to 3,849.86, 5,313.40 and 2,278.46 is: 3,144.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.86 : 5,313.40 = 2,278.46 : x
  2. Step 2: Convert to fraction form
    3,849.86/5,313.40 = 2,278.46/x
  3. Step 3: Cross multiply
    3,849.86x = 5,313.40 × 2,278.46
  4. Step 4: Simplify right side
    3,849.86x = 12,106,369.36
  5. Step 5: Solve for x
    x = 12,106,369.36/3,849.86
  6. Step 6: Final answer
    x = 3,144.63

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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.