Home / 2,811.84-4,217.78-1,166.60

Finding the Fourth Proportional to 2,811.84, 4,217.78 and 1,166.60

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Solution

The fourth proportional to 2,811.84, 4,217.78 and 1,166.60 is: 1,749.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.84 : 4,217.78 = 1,166.60 : x
  2. Step 2: Convert to fraction form
    2,811.84/4,217.78 = 1,166.60/x
  3. Step 3: Cross multiply
    2,811.84x = 4,217.78 × 1,166.60
  4. Step 4: Simplify right side
    2,811.84x = 4,920,462.15
  5. Step 5: Solve for x
    x = 4,920,462.15/2,811.84
  6. Step 6: Final answer
    x = 1,749.91

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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.