Home / 7,811.67-10,778.44-4,625.97

Finding the Fourth Proportional to 7,811.67, 10,778.44 and 4,625.97

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Solution

The fourth proportional to 7,811.67, 10,778.44 and 4,625.97 is: 6,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.67 : 10,778.44 = 4,625.97 : x
  2. Step 2: Convert to fraction form
    7,811.67/10,778.44 = 4,625.97/x
  3. Step 3: Cross multiply
    7,811.67x = 10,778.44 × 4,625.97
  4. Step 4: Simplify right side
    7,811.67x = 49,860,688.10
  5. Step 5: Solve for x
    x = 49,860,688.10/7,811.67
  6. Step 6: Final answer
    x = 6,382.85

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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.