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Finding the Fourth Proportional to 6,601.72, 9,899.08 and 2,899.68

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Solution

The fourth proportional to 6,601.72, 9,899.08 and 2,899.68 is: 4,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.72 : 9,899.08 = 2,899.68 : x
  2. Step 2: Convert to fraction form
    6,601.72/9,899.08 = 2,899.68/x
  3. Step 3: Cross multiply
    6,601.72x = 9,899.08 × 2,899.68
  4. Step 4: Simplify right side
    6,601.72x = 28,704,164.29
  5. Step 5: Solve for x
    x = 28,704,164.29/6,601.72
  6. Step 6: Final answer
    x = 4,347.98

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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.