Home / 4,161.36-6,240.26-1,238.88

Finding the Fourth Proportional to 4,161.36, 6,240.26 and 1,238.88

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Solution

The fourth proportional to 4,161.36, 6,240.26 and 1,238.88 is: 1,857.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,161.36 : 6,240.26 = 1,238.88 : x
  2. Step 2: Convert to fraction form
    4,161.36/6,240.26 = 1,238.88/x
  3. Step 3: Cross multiply
    4,161.36x = 6,240.26 × 1,238.88
  4. Step 4: Simplify right side
    4,161.36x = 7,730,933.31
  5. Step 5: Solve for x
    x = 7,730,933.31/4,161.36
  6. Step 6: Final answer
    x = 1,857.79

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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.