Home / 5,418.46-8,127.69-2,133.10

Finding the Fourth Proportional to 5,418.46, 8,127.69 and 2,133.10

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Solution

The fourth proportional to 5,418.46, 8,127.69 and 2,133.10 is: 3,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.46 : 8,127.69 = 2,133.10 : x
  2. Step 2: Convert to fraction form
    5,418.46/8,127.69 = 2,133.10/x
  3. Step 3: Cross multiply
    5,418.46x = 8,127.69 × 2,133.10
  4. Step 4: Simplify right side
    5,418.46x = 17,337,175.54
  5. Step 5: Solve for x
    x = 17,337,175.54/5,418.46
  6. Step 6: Final answer
    x = 3,199.65

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Similar ratio
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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.