Home / 3,944.80-5,917.20-1,864.12

Finding the Fourth Proportional to 3,944.80, 5,917.20 and 1,864.12

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Solution

The fourth proportional to 3,944.80, 5,917.20 and 1,864.12 is: 2,796.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.80 : 5,917.20 = 1,864.12 : x
  2. Step 2: Convert to fraction form
    3,944.80/5,917.20 = 1,864.12/x
  3. Step 3: Cross multiply
    3,944.80x = 5,917.20 × 1,864.12
  4. Step 4: Simplify right side
    3,944.80x = 11,030,370.86
  5. Step 5: Solve for x
    x = 11,030,370.86/3,944.80
  6. Step 6: Final answer
    x = 2,796.18

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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.