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Finding the Fourth Proportional to 4,324.67, 6,487.00 and 1,728.21

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Solution

The fourth proportional to 4,324.67, 6,487.00 and 1,728.21 is: 2,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,324.67 : 6,487.00 = 1,728.21 : x
  2. Step 2: Convert to fraction form
    4,324.67/6,487.00 = 1,728.21/x
  3. Step 3: Cross multiply
    4,324.67x = 6,487.00 × 1,728.21
  4. Step 4: Simplify right side
    4,324.67x = 11,210,893.95
  5. Step 5: Solve for x
    x = 11,210,893.95/4,324.67
  6. Step 6: Final answer
    x = 2,592.32

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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.