Home / 5,448.20-8,172.38-1,344.20

Finding the Fourth Proportional to 5,448.20, 8,172.38 and 1,344.20

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Solution

The fourth proportional to 5,448.20, 8,172.38 and 1,344.20 is: 2,016.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,448.20 : 8,172.38 = 1,344.20 : x
  2. Step 2: Convert to fraction form
    5,448.20/8,172.38 = 1,344.20/x
  3. Step 3: Cross multiply
    5,448.20x = 8,172.38 × 1,344.20
  4. Step 4: Simplify right side
    5,448.20x = 10,985,313.20
  5. Step 5: Solve for x
    x = 10,985,313.20/5,448.20
  6. Step 6: Final answer
    x = 2,016.32

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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.