Home / 2,814.46-4,220.12-1,172.18

Finding the Fourth Proportional to 2,814.46, 4,220.12 and 1,172.18

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Solution

The fourth proportional to 2,814.46, 4,220.12 and 1,172.18 is: 1,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.46 : 4,220.12 = 1,172.18 : x
  2. Step 2: Convert to fraction form
    2,814.46/4,220.12 = 1,172.18/x
  3. Step 3: Cross multiply
    2,814.46x = 4,220.12 × 1,172.18
  4. Step 4: Simplify right side
    2,814.46x = 4,946,740.26
  5. Step 5: Solve for x
    x = 4,946,740.26/2,814.46
  6. Step 6: Final answer
    x = 1,757.62

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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.