Home / 5,164.45-7,124.75-3,174.37

Finding the Fourth Proportional to 5,164.45, 7,124.75 and 3,174.37

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Solution

The fourth proportional to 5,164.45, 7,124.75 and 3,174.37 is: 4,379.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.45 : 7,124.75 = 3,174.37 : x
  2. Step 2: Convert to fraction form
    5,164.45/7,124.75 = 3,174.37/x
  3. Step 3: Cross multiply
    5,164.45x = 7,124.75 × 3,174.37
  4. Step 4: Simplify right side
    5,164.45x = 22,616,576.79
  5. Step 5: Solve for x
    x = 22,616,576.79/5,164.45
  6. Step 6: Final answer
    x = 4,379.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.