Home / 3,479.30-5,219.22-1,399.03

Finding the Fourth Proportional to 3,479.30, 5,219.22 and 1,399.03

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Solution

The fourth proportional to 3,479.30, 5,219.22 and 1,399.03 is: 2,098.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.30 : 5,219.22 = 1,399.03 : x
  2. Step 2: Convert to fraction form
    3,479.30/5,219.22 = 1,399.03/x
  3. Step 3: Cross multiply
    3,479.30x = 5,219.22 × 1,399.03
  4. Step 4: Simplify right side
    3,479.30x = 7,301,819.26
  5. Step 5: Solve for x
    x = 7,301,819.26/3,479.30
  6. Step 6: Final answer
    x = 2,098.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.