Home / 5,163.93-7,121.61-4,278.18

Finding the Fourth Proportional to 5,163.93, 7,121.61 and 4,278.18

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Solution

The fourth proportional to 5,163.93, 7,121.61 and 4,278.18 is: 5,900.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.93 : 7,121.61 = 4,278.18 : x
  2. Step 2: Convert to fraction form
    5,163.93/7,121.61 = 4,278.18/x
  3. Step 3: Cross multiply
    5,163.93x = 7,121.61 × 4,278.18
  4. Step 4: Simplify right side
    5,163.93x = 30,467,529.47
  5. Step 5: Solve for x
    x = 30,467,529.47/5,163.93
  6. Step 6: Final answer
    x = 5,900.07

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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.