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Finding the Fourth Proportional to 4,322.88, 6,486 and 1,727.64

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Solution

The fourth proportional to 4,322.88, 6,486 and 1,727.64 is: 2,592.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,322.88 : 6,486 = 1,727.64 : x
  2. Step 2: Convert to fraction form
    4,322.88/6,486 = 1,727.64/x
  3. Step 3: Cross multiply
    4,322.88x = 6,486 × 1,727.64
  4. Step 4: Simplify right side
    4,322.88x = 11,205,473.04
  5. Step 5: Solve for x
    x = 11,205,473.04/4,322.88
  6. Step 6: Final answer
    x = 2,592.13

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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.