Home / 5,240.40-7,859.84-1,344.56

Finding the Fourth Proportional to 5,240.40, 7,859.84 and 1,344.56

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Solution

The fourth proportional to 5,240.40, 7,859.84 and 1,344.56 is: 2,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.40 : 7,859.84 = 1,344.56 : x
  2. Step 2: Convert to fraction form
    5,240.40/7,859.84 = 1,344.56/x
  3. Step 3: Cross multiply
    5,240.40x = 7,859.84 × 1,344.56
  4. Step 4: Simplify right side
    5,240.40x = 10,568,026.47
  5. Step 5: Solve for x
    x = 10,568,026.47/5,240.40
  6. Step 6: Final answer
    x = 2,016.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.