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Finding the Fourth Proportional to 7,658.53, 11,485.50 and 2,979.26

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Solution

The fourth proportional to 7,658.53, 11,485.50 and 2,979.26 is: 4,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,658.53 : 11,485.50 = 2,979.26 : x
  2. Step 2: Convert to fraction form
    7,658.53/11,485.50 = 2,979.26/x
  3. Step 3: Cross multiply
    7,658.53x = 11,485.50 × 2,979.26
  4. Step 4: Simplify right side
    7,658.53x = 34,218,290.73
  5. Step 5: Solve for x
    x = 34,218,290.73/7,658.53
  6. Step 6: Final answer
    x = 4,468.00

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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.