Home / 7,181.20-9,910.06-4,037.36

Finding the Fourth Proportional to 7,181.20, 9,910.06 and 4,037.36

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Solution

The fourth proportional to 7,181.20, 9,910.06 and 4,037.36 is: 5,571.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.20 : 9,910.06 = 4,037.36 : x
  2. Step 2: Convert to fraction form
    7,181.20/9,910.06 = 4,037.36/x
  3. Step 3: Cross multiply
    7,181.20x = 9,910.06 × 4,037.36
  4. Step 4: Simplify right side
    7,181.20x = 40,010,479.84
  5. Step 5: Solve for x
    x = 40,010,479.84/7,181.20
  6. Step 6: Final answer
    x = 5,571.56

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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.