Home / 2,622.14-3,929.09-1,235.15

Finding the Fourth Proportional to 2,622.14, 3,929.09 and 1,235.15

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Solution

The fourth proportional to 2,622.14, 3,929.09 and 1,235.15 is: 1,850.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.14 : 3,929.09 = 1,235.15 : x
  2. Step 2: Convert to fraction form
    2,622.14/3,929.09 = 1,235.15/x
  3. Step 3: Cross multiply
    2,622.14x = 3,929.09 × 1,235.15
  4. Step 4: Simplify right side
    2,622.14x = 4,853,015.51
  5. Step 5: Solve for x
    x = 4,853,015.51/2,622.14
  6. Step 6: Final answer
    x = 1,850.78

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1.5x scale

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.