Home / 4,754.42-7,133.32-2,121.68

Finding the Fourth Proportional to 4,754.42, 7,133.32 and 2,121.68

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Solution

The fourth proportional to 4,754.42, 7,133.32 and 2,121.68 is: 3,183.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,754.42 : 7,133.32 = 2,121.68 : x
  2. Step 2: Convert to fraction form
    4,754.42/7,133.32 = 2,121.68/x
  3. Step 3: Cross multiply
    4,754.42x = 7,133.32 × 2,121.68
  4. Step 4: Simplify right side
    4,754.42x = 15,134,641.17
  5. Step 5: Solve for x
    x = 15,134,641.17/4,754.42
  6. Step 6: Final answer
    x = 3,183.28

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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.