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Finding the Fourth Proportional to 3,808.68, 5,702.73 and 2,489.16

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Solution

The fourth proportional to 3,808.68, 5,702.73 and 2,489.16 is: 3,727.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.68 : 5,702.73 = 2,489.16 : x
  2. Step 2: Convert to fraction form
    3,808.68/5,702.73 = 2,489.16/x
  3. Step 3: Cross multiply
    3,808.68x = 5,702.73 × 2,489.16
  4. Step 4: Simplify right side
    3,808.68x = 14,195,007.41
  5. Step 5: Solve for x
    x = 14,195,007.41/3,808.68
  6. Step 6: Final answer
    x = 3,727.01

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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.