Home / 2,811.86-4,218.85-1,168.27

Finding the Fourth Proportional to 2,811.86, 4,218.85 and 1,168.27

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Solution

The fourth proportional to 2,811.86, 4,218.85 and 1,168.27 is: 1,752.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.86 : 4,218.85 = 1,168.27 : x
  2. Step 2: Convert to fraction form
    2,811.86/4,218.85 = 1,168.27/x
  3. Step 3: Cross multiply
    2,811.86x = 4,218.85 × 1,168.27
  4. Step 4: Simplify right side
    2,811.86x = 4,928,746.80
  5. Step 5: Solve for x
    x = 4,928,746.80/2,811.86
  6. Step 6: Final answer
    x = 1,752.84

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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.