Home / 2,812.13-4,218.21-1,168.73

Finding the Fourth Proportional to 2,812.13, 4,218.21 and 1,168.73

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Solution

The fourth proportional to 2,812.13, 4,218.21 and 1,168.73 is: 1,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.13 : 4,218.21 = 1,168.73 : x
  2. Step 2: Convert to fraction form
    2,812.13/4,218.21 = 1,168.73/x
  3. Step 3: Cross multiply
    2,812.13x = 4,218.21 × 1,168.73
  4. Step 4: Simplify right side
    2,812.13x = 4,929,927.48
  5. Step 5: Solve for x
    x = 4,929,927.48/2,812.13
  6. Step 6: Final answer
    x = 1,753.10

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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.