Home / 2,771.91-4,148.13-2,151.66

Finding the Fourth Proportional to 2,771.91, 4,148.13 and 2,151.66

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Solution

The fourth proportional to 2,771.91, 4,148.13 and 2,151.66 is: 3,219.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.91 : 4,148.13 = 2,151.66 : x
  2. Step 2: Convert to fraction form
    2,771.91/4,148.13 = 2,151.66/x
  3. Step 3: Cross multiply
    2,771.91x = 4,148.13 × 2,151.66
  4. Step 4: Simplify right side
    2,771.91x = 8,925,344.66
  5. Step 5: Solve for x
    x = 8,925,344.66/2,771.91
  6. Step 6: Final answer
    x = 3,219.93

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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.