Home / 7,182.46-9,910.77-3,995.56

Finding the Fourth Proportional to 7,182.46, 9,910.77 and 3,995.56

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Solution

The fourth proportional to 7,182.46, 9,910.77 and 3,995.56 is: 5,513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.46 : 9,910.77 = 3,995.56 : x
  2. Step 2: Convert to fraction form
    7,182.46/9,910.77 = 3,995.56/x
  3. Step 3: Cross multiply
    7,182.46x = 9,910.77 × 3,995.56
  4. Step 4: Simplify right side
    7,182.46x = 39,599,076.18
  5. Step 5: Solve for x
    x = 39,599,076.18/7,182.46
  6. Step 6: Final answer
    x = 5,513.30

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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.