Home / 5,198.76-7,172.15-3,627.77

Finding the Fourth Proportional to 5,198.76, 7,172.15 and 3,627.77

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Solution

The fourth proportional to 5,198.76, 7,172.15 and 3,627.77 is: 5,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.76 : 7,172.15 = 3,627.77 : x
  2. Step 2: Convert to fraction form
    5,198.76/7,172.15 = 3,627.77/x
  3. Step 3: Cross multiply
    5,198.76x = 7,172.15 × 3,627.77
  4. Step 4: Simplify right side
    5,198.76x = 26,018,856.61
  5. Step 5: Solve for x
    x = 26,018,856.61/5,198.76
  6. Step 6: Final answer
    x = 5,004.82

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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.