Home / 1,206.56-1,809.92-1,100.96

Finding the Fourth Proportional to 1,206.56, 1,809.92 and 1,100.96

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Solution

The fourth proportional to 1,206.56, 1,809.92 and 1,100.96 is: 1,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.56 : 1,809.92 = 1,100.96 : x
  2. Step 2: Convert to fraction form
    1,206.56/1,809.92 = 1,100.96/x
  3. Step 3: Cross multiply
    1,206.56x = 1,809.92 × 1,100.96
  4. Step 4: Simplify right side
    1,206.56x = 1,992,649.52
  5. Step 5: Solve for x
    x = 1,992,649.52/1,206.56
  6. Step 6: Final answer
    x = 1,651.51

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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.