Home / 5,128.97-7,074.68-3,237.21

Finding the Fourth Proportional to 5,128.97, 7,074.68 and 3,237.21

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Solution

The fourth proportional to 5,128.97, 7,074.68 and 3,237.21 is: 4,465.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.97 : 7,074.68 = 3,237.21 : x
  2. Step 2: Convert to fraction form
    5,128.97/7,074.68 = 3,237.21/x
  3. Step 3: Cross multiply
    5,128.97x = 7,074.68 × 3,237.21
  4. Step 4: Simplify right side
    5,128.97x = 22,902,208.66
  5. Step 5: Solve for x
    x = 22,902,208.66/5,128.97
  6. Step 6: Final answer
    x = 4,465.27

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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.