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Finding the Fourth Proportional to 6,666.61, 9,200.10 and 3,682.44

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Solution

The fourth proportional to 6,666.61, 9,200.10 and 3,682.44 is: 5,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.61 : 9,200.10 = 3,682.44 : x
  2. Step 2: Convert to fraction form
    6,666.61/9,200.10 = 3,682.44/x
  3. Step 3: Cross multiply
    6,666.61x = 9,200.10 × 3,682.44
  4. Step 4: Simplify right side
    6,666.61x = 33,878,816.24
  5. Step 5: Solve for x
    x = 33,878,816.24/6,666.61
  6. Step 6: Final answer
    x = 5,081.87

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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.