Home / 5,127.20-7,692-1,664.44

Finding the Fourth Proportional to 5,127.20, 7,692 and 1,664.44

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Solution

The fourth proportional to 5,127.20, 7,692 and 1,664.44 is: 2,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.20 : 7,692 = 1,664.44 : x
  2. Step 2: Convert to fraction form
    5,127.20/7,692 = 1,664.44/x
  3. Step 3: Cross multiply
    5,127.20x = 7,692 × 1,664.44
  4. Step 4: Simplify right side
    5,127.20x = 12,802,872.48
  5. Step 5: Solve for x
    x = 12,802,872.48/5,127.20
  6. Step 6: Final answer
    x = 2,497.05

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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.