Home / 1,227.32-1,829.14-1,217.12

Finding the Fourth Proportional to 1,227.32, 1,829.14 and 1,217.12

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Solution

The fourth proportional to 1,227.32, 1,829.14 and 1,217.12 is: 1,813.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.32 : 1,829.14 = 1,217.12 : x
  2. Step 2: Convert to fraction form
    1,227.32/1,829.14 = 1,217.12/x
  3. Step 3: Cross multiply
    1,227.32x = 1,829.14 × 1,217.12
  4. Step 4: Simplify right side
    1,227.32x = 2,226,282.88
  5. Step 5: Solve for x
    x = 2,226,282.88/1,227.32
  6. Step 6: Final answer
    x = 1,813.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.