Home / 5,255.22-7,249.02-3,129.33

Finding the Fourth Proportional to 5,255.22, 7,249.02 and 3,129.33

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Solution

The fourth proportional to 5,255.22, 7,249.02 and 3,129.33 is: 4,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.22 : 7,249.02 = 3,129.33 : x
  2. Step 2: Convert to fraction form
    5,255.22/7,249.02 = 3,129.33/x
  3. Step 3: Cross multiply
    5,255.22x = 7,249.02 × 3,129.33
  4. Step 4: Simplify right side
    5,255.22x = 22,684,575.76
  5. Step 5: Solve for x
    x = 22,684,575.76/5,255.22
  6. Step 6: Final answer
    x = 4,316.58

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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.