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Finding the Fourth Proportional to 6,666.68, 9,199.98 and 3,682.50

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Solution

The fourth proportional to 6,666.68, 9,199.98 and 3,682.50 is: 5,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.68 : 9,199.98 = 3,682.50 : x
  2. Step 2: Convert to fraction form
    6,666.68/9,199.98 = 3,682.50/x
  3. Step 3: Cross multiply
    6,666.68x = 9,199.98 × 3,682.50
  4. Step 4: Simplify right side
    6,666.68x = 33,878,926.35
  5. Step 5: Solve for x
    x = 33,878,926.35/6,666.68
  6. Step 6: Final answer
    x = 5,081.83

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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.