Home / 5,119.48-7,681.38-3,274.20

Finding the Fourth Proportional to 5,119.48, 7,681.38 and 3,274.20

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Solution

The fourth proportional to 5,119.48, 7,681.38 and 3,274.20 is: 4,912.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.48 : 7,681.38 = 3,274.20 : x
  2. Step 2: Convert to fraction form
    5,119.48/7,681.38 = 3,274.20/x
  3. Step 3: Cross multiply
    5,119.48x = 7,681.38 × 3,274.20
  4. Step 4: Simplify right side
    5,119.48x = 25,150,358.93
  5. Step 5: Solve for x
    x = 25,150,358.93/5,119.48
  6. Step 6: Final answer
    x = 4,912.68

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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.