Home / 5,127.72-7,694.94-2,820.84

Finding the Fourth Proportional to 5,127.72, 7,694.94 and 2,820.84

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Solution

The fourth proportional to 5,127.72, 7,694.94 and 2,820.84 is: 4,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.72 : 7,694.94 = 2,820.84 : x
  2. Step 2: Convert to fraction form
    5,127.72/7,694.94 = 2,820.84/x
  3. Step 3: Cross multiply
    5,127.72x = 7,694.94 × 2,820.84
  4. Step 4: Simplify right side
    5,127.72x = 21,706,194.55
  5. Step 5: Solve for x
    x = 21,706,194.55/5,127.72
  6. Step 6: Final answer
    x = 4,233.11

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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.