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Finding the Fourth Proportional to 6,658.67, 9,980.31 and 2,758.25

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Solution

The fourth proportional to 6,658.67, 9,980.31 and 2,758.25 is: 4,134.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658.67 : 9,980.31 = 2,758.25 : x
  2. Step 2: Convert to fraction form
    6,658.67/9,980.31 = 2,758.25/x
  3. Step 3: Cross multiply
    6,658.67x = 9,980.31 × 2,758.25
  4. Step 4: Simplify right side
    6,658.67x = 27,528,190.06
  5. Step 5: Solve for x
    x = 27,528,190.06/6,658.67
  6. Step 6: Final answer
    x = 4,134.19

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1.5x scale

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.