Home / 2,226.63-3,072.87-1,231.91

Finding the Fourth Proportional to 2,226.63, 3,072.87 and 1,231.91

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Solution

The fourth proportional to 2,226.63, 3,072.87 and 1,231.91 is: 1,700.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.63 : 3,072.87 = 1,231.91 : x
  2. Step 2: Convert to fraction form
    2,226.63/3,072.87 = 1,231.91/x
  3. Step 3: Cross multiply
    2,226.63x = 3,072.87 × 1,231.91
  4. Step 4: Simplify right side
    2,226.63x = 3,785,483.92
  5. Step 5: Solve for x
    x = 3,785,483.92/2,226.63
  6. Step 6: Final answer
    x = 1,700.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.