Home / 6,385.91-8,811.87-3,552.83

Finding the Fourth Proportional to 6,385.91, 8,811.87 and 3,552.83

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Solution

The fourth proportional to 6,385.91, 8,811.87 and 3,552.83 is: 4,902.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.91 : 8,811.87 = 3,552.83 : x
  2. Step 2: Convert to fraction form
    6,385.91/8,811.87 = 3,552.83/x
  3. Step 3: Cross multiply
    6,385.91x = 8,811.87 × 3,552.83
  4. Step 4: Simplify right side
    6,385.91x = 31,307,076.09
  5. Step 5: Solve for x
    x = 31,307,076.09/6,385.91
  6. Step 6: Final answer
    x = 4,902.52

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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.