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Finding the Fourth Proportional to 6,656.98, 9,979.53 and 2,758.90

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Solution

The fourth proportional to 6,656.98, 9,979.53 and 2,758.90 is: 4,135.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.98 : 9,979.53 = 2,758.90 : x
  2. Step 2: Convert to fraction form
    6,656.98/9,979.53 = 2,758.90/x
  3. Step 3: Cross multiply
    6,656.98x = 9,979.53 × 2,758.90
  4. Step 4: Simplify right side
    6,656.98x = 27,532,525.32
  5. Step 5: Solve for x
    x = 27,532,525.32/6,656.98
  6. Step 6: Final answer
    x = 4,135.89

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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.