Home / 6,511.11-8,981.75-3,858.03

Finding the Fourth Proportional to 6,511.11, 8,981.75 and 3,858.03

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Solution

The fourth proportional to 6,511.11, 8,981.75 and 3,858.03 is: 5,321.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.11 : 8,981.75 = 3,858.03 : x
  2. Step 2: Convert to fraction form
    6,511.11/8,981.75 = 3,858.03/x
  3. Step 3: Cross multiply
    6,511.11x = 8,981.75 × 3,858.03
  4. Step 4: Simplify right side
    6,511.11x = 34,651,841.66
  5. Step 5: Solve for x
    x = 34,651,841.66/6,511.11
  6. Step 6: Final answer
    x = 5,321.96

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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.