Home / 3,170.40-4,757.40-1,222.72

Finding the Fourth Proportional to 3,170.40, 4,757.40 and 1,222.72

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Solution

The fourth proportional to 3,170.40, 4,757.40 and 1,222.72 is: 1,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.40 : 4,757.40 = 1,222.72 : x
  2. Step 2: Convert to fraction form
    3,170.40/4,757.40 = 1,222.72/x
  3. Step 3: Cross multiply
    3,170.40x = 4,757.40 × 1,222.72
  4. Step 4: Simplify right side
    3,170.40x = 5,816,968.13
  5. Step 5: Solve for x
    x = 5,816,968.13/3,170.40
  6. Step 6: Final answer
    x = 1,834.77

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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.