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Finding the Fourth Proportional to 6,658.50, 9,987.75 and 1,794.50

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Solution

The fourth proportional to 6,658.50, 9,987.75 and 1,794.50 is: 2,691.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658.50 : 9,987.75 = 1,794.50 : x
  2. Step 2: Convert to fraction form
    6,658.50/9,987.75 = 1,794.50/x
  3. Step 3: Cross multiply
    6,658.50x = 9,987.75 × 1,794.50
  4. Step 4: Simplify right side
    6,658.50x = 17,923,017.38
  5. Step 5: Solve for x
    x = 17,923,017.38/6,658.50
  6. Step 6: Final answer
    x = 2,691.75

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Double scale
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Similar ratio
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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.