Home / 5,719.14-7,890.09-3,479.22

Finding the Fourth Proportional to 5,719.14, 7,890.09 and 3,479.22

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Solution

The fourth proportional to 5,719.14, 7,890.09 and 3,479.22 is: 4,799.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.14 : 7,890.09 = 3,479.22 : x
  2. Step 2: Convert to fraction form
    5,719.14/7,890.09 = 3,479.22/x
  3. Step 3: Cross multiply
    5,719.14x = 7,890.09 × 3,479.22
  4. Step 4: Simplify right side
    5,719.14x = 27,451,358.93
  5. Step 5: Solve for x
    x = 27,451,358.93/5,719.14
  6. Step 6: Final answer
    x = 4,799.91

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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.