Home / 2,811.47-4,217.72-1,168.15

Finding the Fourth Proportional to 2,811.47, 4,217.72 and 1,168.15

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Solution

The fourth proportional to 2,811.47, 4,217.72 and 1,168.15 is: 1,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.47 : 4,217.72 = 1,168.15 : x
  2. Step 2: Convert to fraction form
    2,811.47/4,217.72 = 1,168.15/x
  3. Step 3: Cross multiply
    2,811.47x = 4,217.72 × 1,168.15
  4. Step 4: Simplify right side
    2,811.47x = 4,926,921.99
  5. Step 5: Solve for x
    x = 4,926,921.99/2,811.47
  6. Step 6: Final answer
    x = 1,752.43

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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.