Home / 3,919.04-5,401.68-2,519.36

Finding the Fourth Proportional to 3,919.04, 5,401.68 and 2,519.36

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Solution

The fourth proportional to 3,919.04, 5,401.68 and 2,519.36 is: 3,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.04 : 5,401.68 = 2,519.36 : x
  2. Step 2: Convert to fraction form
    3,919.04/5,401.68 = 2,519.36/x
  3. Step 3: Cross multiply
    3,919.04x = 5,401.68 × 2,519.36
  4. Step 4: Simplify right side
    3,919.04x = 13,608,776.52
  5. Step 5: Solve for x
    x = 13,608,776.52/3,919.04
  6. Step 6: Final answer
    x = 3,472.48

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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.