Home / 2,151.27-3,226.80-612.27

Finding the Fourth Proportional to 2,151.27, 3,226.80 and 612.27

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Solution

The fourth proportional to 2,151.27, 3,226.80 and 612.27 is: 918.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.27 : 3,226.80 = 612.27 : x
  2. Step 2: Convert to fraction form
    2,151.27/3,226.80 = 612.27/x
  3. Step 3: Cross multiply
    2,151.27x = 3,226.80 × 612.27
  4. Step 4: Simplify right side
    2,151.27x = 1,975,672.84
  5. Step 5: Solve for x
    x = 1,975,672.84/2,151.27
  6. Step 6: Final answer
    x = 918.38

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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.