Home / 5,419.14-7,479.69-3,181.11

Finding the Fourth Proportional to 5,419.14, 7,479.69 and 3,181.11

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Solution

The fourth proportional to 5,419.14, 7,479.69 and 3,181.11 is: 4,390.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.14 : 7,479.69 = 3,181.11 : x
  2. Step 2: Convert to fraction form
    5,419.14/7,479.69 = 3,181.11/x
  3. Step 3: Cross multiply
    5,419.14x = 7,479.69 × 3,181.11
  4. Step 4: Simplify right side
    5,419.14x = 23,793,716.66
  5. Step 5: Solve for x
    x = 23,793,716.66/5,419.14
  6. Step 6: Final answer
    x = 4,390.68

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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.