Home / 4,222.80-6,330.78-1,759.48

Finding the Fourth Proportional to 4,222.80, 6,330.78 and 1,759.48

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Solution

The fourth proportional to 4,222.80, 6,330.78 and 1,759.48 is: 2,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,222.80 : 6,330.78 = 1,759.48 : x
  2. Step 2: Convert to fraction form
    4,222.80/6,330.78 = 1,759.48/x
  3. Step 3: Cross multiply
    4,222.80x = 6,330.78 × 1,759.48
  4. Step 4: Simplify right side
    4,222.80x = 11,138,880.79
  5. Step 5: Solve for x
    x = 11,138,880.79/4,222.80
  6. Step 6: Final answer
    x = 2,637.80

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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.