Home / 3,846.80-5,769.66-1,249.40

Finding the Fourth Proportional to 3,846.80, 5,769.66 and 1,249.40

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Solution

The fourth proportional to 3,846.80, 5,769.66 and 1,249.40 is: 1,873.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.80 : 5,769.66 = 1,249.40 : x
  2. Step 2: Convert to fraction form
    3,846.80/5,769.66 = 1,249.40/x
  3. Step 3: Cross multiply
    3,846.80x = 5,769.66 × 1,249.40
  4. Step 4: Simplify right side
    3,846.80x = 7,208,613.20
  5. Step 5: Solve for x
    x = 7,208,613.20/3,846.80
  6. Step 6: Final answer
    x = 1,873.92

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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.