Home / 5,127.26-7,074.31-3,137.09

Finding the Fourth Proportional to 5,127.26, 7,074.31 and 3,137.09

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Solution

The fourth proportional to 5,127.26, 7,074.31 and 3,137.09 is: 4,328.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.26 : 7,074.31 = 3,137.09 : x
  2. Step 2: Convert to fraction form
    5,127.26/7,074.31 = 3,137.09/x
  3. Step 3: Cross multiply
    5,127.26x = 7,074.31 × 3,137.09
  4. Step 4: Simplify right side
    5,127.26x = 22,192,747.16
  5. Step 5: Solve for x
    x = 22,192,747.16/5,127.26
  6. Step 6: Final answer
    x = 4,328.38

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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.