Home / 2,722.16-4,080-1,895.96

Finding the Fourth Proportional to 2,722.16, 4,080 and 1,895.96

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Solution

The fourth proportional to 2,722.16, 4,080 and 1,895.96 is: 2,841.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.16 : 4,080 = 1,895.96 : x
  2. Step 2: Convert to fraction form
    2,722.16/4,080 = 1,895.96/x
  3. Step 3: Cross multiply
    2,722.16x = 4,080 × 1,895.96
  4. Step 4: Simplify right side
    2,722.16x = 7,735,516.80
  5. Step 5: Solve for x
    x = 7,735,516.80/2,722.16
  6. Step 6: Final answer
    x = 2,841.68

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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.