Home / 5,175.18-7,760.39-1,664.54

Finding the Fourth Proportional to 5,175.18, 7,760.39 and 1,664.54

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Solution

The fourth proportional to 5,175.18, 7,760.39 and 1,664.54 is: 2,496.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.18 : 7,760.39 = 1,664.54 : x
  2. Step 2: Convert to fraction form
    5,175.18/7,760.39 = 1,664.54/x
  3. Step 3: Cross multiply
    5,175.18x = 7,760.39 × 1,664.54
  4. Step 4: Simplify right side
    5,175.18x = 12,917,479.57
  5. Step 5: Solve for x
    x = 12,917,479.57/5,175.18
  6. Step 6: Final answer
    x = 2,496.04

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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.