Home / 7,181.21-9,909.97-4,037.39

Finding the Fourth Proportional to 7,181.21, 9,909.97 and 4,037.39

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Solution

The fourth proportional to 7,181.21, 9,909.97 and 4,037.39 is: 5,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.21 : 9,909.97 = 4,037.39 : x
  2. Step 2: Convert to fraction form
    7,181.21/9,909.97 = 4,037.39/x
  3. Step 3: Cross multiply
    7,181.21x = 9,909.97 × 4,037.39
  4. Step 4: Simplify right side
    7,181.21x = 40,010,447.04
  5. Step 5: Solve for x
    x = 40,010,447.04/7,181.21
  6. Step 6: Final answer
    x = 5,571.55

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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.