Home / 3,449.36-5,161.68-2,988.72

Finding the Fourth Proportional to 3,449.36, 5,161.68 and 2,988.72

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Solution

The fourth proportional to 3,449.36, 5,161.68 and 2,988.72 is: 4,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.36 : 5,161.68 = 2,988.72 : x
  2. Step 2: Convert to fraction form
    3,449.36/5,161.68 = 2,988.72/x
  3. Step 3: Cross multiply
    3,449.36x = 5,161.68 × 2,988.72
  4. Step 4: Simplify right side
    3,449.36x = 15,426,816.25
  5. Step 5: Solve for x
    x = 15,426,816.25/3,449.36
  6. Step 6: Final answer
    x = 4,472.37

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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.