Home / 3,409.19-4,704.45-1,917.33

Finding the Fourth Proportional to 3,409.19, 4,704.45 and 1,917.33

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Solution

The fourth proportional to 3,409.19, 4,704.45 and 1,917.33 is: 2,645.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.19 : 4,704.45 = 1,917.33 : x
  2. Step 2: Convert to fraction form
    3,409.19/4,704.45 = 1,917.33/x
  3. Step 3: Cross multiply
    3,409.19x = 4,704.45 × 1,917.33
  4. Step 4: Simplify right side
    3,409.19x = 9,019,983.12
  5. Step 5: Solve for x
    x = 9,019,983.12/3,409.19
  6. Step 6: Final answer
    x = 2,645.78

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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.