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Finding the Fourth Proportional to 7,536.95, 10,400.09 and 4,179.09

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Solution

The fourth proportional to 7,536.95, 10,400.09 and 4,179.09 is: 5,766.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,536.95 : 10,400.09 = 4,179.09 : x
  2. Step 2: Convert to fraction form
    7,536.95/10,400.09 = 4,179.09/x
  3. Step 3: Cross multiply
    7,536.95x = 10,400.09 × 4,179.09
  4. Step 4: Simplify right side
    7,536.95x = 43,462,891.22
  5. Step 5: Solve for x
    x = 43,462,891.22/7,536.95
  6. Step 6: Final answer
    x = 5,766.65

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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.