Home / 2,811.92-4,219.74-1,168.46

Finding the Fourth Proportional to 2,811.92, 4,219.74 and 1,168.46

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Solution

The fourth proportional to 2,811.92, 4,219.74 and 1,168.46 is: 1,753.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.92 : 4,219.74 = 1,168.46 : x
  2. Step 2: Convert to fraction form
    2,811.92/4,219.74 = 1,168.46/x
  3. Step 3: Cross multiply
    2,811.92x = 4,219.74 × 1,168.46
  4. Step 4: Simplify right side
    2,811.92x = 4,930,597.40
  5. Step 5: Solve for x
    x = 4,930,597.40/2,811.92
  6. Step 6: Final answer
    x = 1,753.46

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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.