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Finding the Fourth Proportional to 2,812.76, 4,218.23 and 1,168.43

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Solution

The fourth proportional to 2,812.76, 4,218.23 and 1,168.43 is: 1,752.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.76 : 4,218.23 = 1,168.43 : x
  2. Step 2: Convert to fraction form
    2,812.76/4,218.23 = 1,168.43/x
  3. Step 3: Cross multiply
    2,812.76x = 4,218.23 × 1,168.43
  4. Step 4: Simplify right side
    2,812.76x = 4,928,679.55
  5. Step 5: Solve for x
    x = 4,928,679.55/2,812.76
  6. Step 6: Final answer
    x = 1,752.26

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1.5x scale

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.