Home / 4,278.81-5,901.17-3,393.21

Finding the Fourth Proportional to 4,278.81, 5,901.17 and 3,393.21

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Solution

The fourth proportional to 4,278.81, 5,901.17 and 3,393.21 is: 4,679.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.81 : 5,901.17 = 3,393.21 : x
  2. Step 2: Convert to fraction form
    4,278.81/5,901.17 = 3,393.21/x
  3. Step 3: Cross multiply
    4,278.81x = 5,901.17 × 3,393.21
  4. Step 4: Simplify right side
    4,278.81x = 20,023,892.09
  5. Step 5: Solve for x
    x = 20,023,892.09/4,278.81
  6. Step 6: Final answer
    x = 4,679.78

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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.