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Finding the Fourth Proportional to 3,243.99, 4,476.38 and 1,827.64

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Solution

The fourth proportional to 3,243.99, 4,476.38 and 1,827.64 is: 2,521.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.99 : 4,476.38 = 1,827.64 : x
  2. Step 2: Convert to fraction form
    3,243.99/4,476.38 = 1,827.64/x
  3. Step 3: Cross multiply
    3,243.99x = 4,476.38 × 1,827.64
  4. Step 4: Simplify right side
    3,243.99x = 8,181,237.47
  5. Step 5: Solve for x
    x = 8,181,237.47/3,243.99
  6. Step 6: Final answer
    x = 2,521.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.