Home / 5,255.02-7,881.92-2,131.86

Finding the Fourth Proportional to 5,255.02, 7,881.92 and 2,131.86

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Solution

The fourth proportional to 5,255.02, 7,881.92 and 2,131.86 is: 3,197.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.02 : 7,881.92 = 2,131.86 : x
  2. Step 2: Convert to fraction form
    5,255.02/7,881.92 = 2,131.86/x
  3. Step 3: Cross multiply
    5,255.02x = 7,881.92 × 2,131.86
  4. Step 4: Simplify right side
    5,255.02x = 16,803,149.97
  5. Step 5: Solve for x
    x = 16,803,149.97/5,255.02
  6. Step 6: Final answer
    x = 3,197.54

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1.5x scale

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.