Home / 3,479.36-5,219.07-1,139.33

Finding the Fourth Proportional to 3,479.36, 5,219.07 and 1,139.33

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Solution

The fourth proportional to 3,479.36, 5,219.07 and 1,139.33 is: 1,709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.36 : 5,219.07 = 1,139.33 : x
  2. Step 2: Convert to fraction form
    3,479.36/5,219.07 = 1,139.33/x
  3. Step 3: Cross multiply
    3,479.36x = 5,219.07 × 1,139.33
  4. Step 4: Simplify right side
    3,479.36x = 5,946,251.80
  5. Step 5: Solve for x
    x = 5,946,251.80/3,479.36
  6. Step 6: Final answer
    x = 1,709.01

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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.