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Finding the Fourth Proportional to 6,656.26, 9,186.84 and 3,861.76

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Solution

The fourth proportional to 6,656.26, 9,186.84 and 3,861.76 is: 5,329.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.26 : 9,186.84 = 3,861.76 : x
  2. Step 2: Convert to fraction form
    6,656.26/9,186.84 = 3,861.76/x
  3. Step 3: Cross multiply
    6,656.26x = 9,186.84 × 3,861.76
  4. Step 4: Simplify right side
    6,656.26x = 35,477,371.24
  5. Step 5: Solve for x
    x = 35,477,371.24/6,656.26
  6. Step 6: Final answer
    x = 5,329.93

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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.