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Finding the Fourth Proportional to 6,651.83, 9,980.13 and 2,850.87

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Solution

The fourth proportional to 6,651.83, 9,980.13 and 2,850.87 is: 4,277.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.83 : 9,980.13 = 2,850.87 : x
  2. Step 2: Convert to fraction form
    6,651.83/9,980.13 = 2,850.87/x
  3. Step 3: Cross multiply
    6,651.83x = 9,980.13 × 2,850.87
  4. Step 4: Simplify right side
    6,651.83x = 28,452,053.21
  5. Step 5: Solve for x
    x = 28,452,053.21/6,651.83
  6. Step 6: Final answer
    x = 4,277.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.