Home / 2,226.36-3,072.56-1,231.76

Finding the Fourth Proportional to 2,226.36, 3,072.56 and 1,231.76

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Solution

The fourth proportional to 2,226.36, 3,072.56 and 1,231.76 is: 1,699.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.36 : 3,072.56 = 1,231.76 : x
  2. Step 2: Convert to fraction form
    2,226.36/3,072.56 = 1,231.76/x
  3. Step 3: Cross multiply
    2,226.36x = 3,072.56 × 1,231.76
  4. Step 4: Simplify right side
    2,226.36x = 3,784,656.51
  5. Step 5: Solve for x
    x = 3,784,656.51/2,226.36
  6. Step 6: Final answer
    x = 1,699.93

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1.5x scale

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.