Home / 5,175.44-7,760.76-1,664.79

Finding the Fourth Proportional to 5,175.44, 7,760.76 and 1,664.79

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Solution

The fourth proportional to 5,175.44, 7,760.76 and 1,664.79 is: 2,496.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.44 : 7,760.76 = 1,664.79 : x
  2. Step 2: Convert to fraction form
    5,175.44/7,760.76 = 1,664.79/x
  3. Step 3: Cross multiply
    5,175.44x = 7,760.76 × 1,664.79
  4. Step 4: Simplify right side
    5,175.44x = 12,920,035.64
  5. Step 5: Solve for x
    x = 12,920,035.64/5,175.44
  6. Step 6: Final answer
    x = 2,496.42

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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.