Home / 7,384.74-11,079.36-3,222.78

Finding the Fourth Proportional to 7,384.74, 11,079.36 and 3,222.78

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Solution

The fourth proportional to 7,384.74, 11,079.36 and 3,222.78 is: 4,835.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,384.74 : 11,079.36 = 3,222.78 : x
  2. Step 2: Convert to fraction form
    7,384.74/11,079.36 = 3,222.78/x
  3. Step 3: Cross multiply
    7,384.74x = 11,079.36 × 3,222.78
  4. Step 4: Simplify right side
    7,384.74x = 35,706,339.82
  5. Step 5: Solve for x
    x = 35,706,339.82/7,384.74
  6. Step 6: Final answer
    x = 4,835.15

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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.