Home / 2,119.05-3,179.22-1,023.45

Finding the Fourth Proportional to 2,119.05, 3,179.22 and 1,023.45

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Solution

The fourth proportional to 2,119.05, 3,179.22 and 1,023.45 is: 1,535.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.05 : 3,179.22 = 1,023.45 : x
  2. Step 2: Convert to fraction form
    2,119.05/3,179.22 = 1,023.45/x
  3. Step 3: Cross multiply
    2,119.05x = 3,179.22 × 1,023.45
  4. Step 4: Simplify right side
    2,119.05x = 3,253,772.71
  5. Step 5: Solve for x
    x = 3,253,772.71/2,119.05
  6. Step 6: Final answer
    x = 1,535.49

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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.