Home / 3,894.86-5,373.20-2,635.49

Finding the Fourth Proportional to 3,894.86, 5,373.20 and 2,635.49

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Solution

The fourth proportional to 3,894.86, 5,373.20 and 2,635.49 is: 3,635.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.86 : 5,373.20 = 2,635.49 : x
  2. Step 2: Convert to fraction form
    3,894.86/5,373.20 = 2,635.49/x
  3. Step 3: Cross multiply
    3,894.86x = 5,373.20 × 2,635.49
  4. Step 4: Simplify right side
    3,894.86x = 14,160,974.82
  5. Step 5: Solve for x
    x = 14,160,974.82/3,894.86
  6. Step 6: Final answer
    x = 3,635.82

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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.