Home / 2,815.50-4,217.50-1,704.22

Finding the Fourth Proportional to 2,815.50, 4,217.50 and 1,704.22

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Solution

The fourth proportional to 2,815.50, 4,217.50 and 1,704.22 is: 2,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.50 : 4,217.50 = 1,704.22 : x
  2. Step 2: Convert to fraction form
    2,815.50/4,217.50 = 1,704.22/x
  3. Step 3: Cross multiply
    2,815.50x = 4,217.50 × 1,704.22
  4. Step 4: Simplify right side
    2,815.50x = 7,187,547.85
  5. Step 5: Solve for x
    x = 7,187,547.85/2,815.50
  6. Step 6: Final answer
    x = 2,552.85

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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.