Home / 1,263.32-1,906.28-1,212.75

Finding the Fourth Proportional to 1,263.32, 1,906.28 and 1,212.75

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Solution

The fourth proportional to 1,263.32, 1,906.28 and 1,212.75 is: 1,829.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.32 : 1,906.28 = 1,212.75 : x
  2. Step 2: Convert to fraction form
    1,263.32/1,906.28 = 1,212.75/x
  3. Step 3: Cross multiply
    1,263.32x = 1,906.28 × 1,212.75
  4. Step 4: Simplify right side
    1,263.32x = 2,311,841.07
  5. Step 5: Solve for x
    x = 2,311,841.07/1,263.32
  6. Step 6: Final answer
    x = 1,829.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.