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Finding the Fourth Proportional to 2,436.32, 3,654.39 and 681.32

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Solution

The fourth proportional to 2,436.32, 3,654.39 and 681.32 is: 1,021.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,436.32 : 3,654.39 = 681.32 : x
  2. Step 2: Convert to fraction form
    2,436.32/3,654.39 = 681.32/x
  3. Step 3: Cross multiply
    2,436.32x = 3,654.39 × 681.32
  4. Step 4: Simplify right side
    2,436.32x = 2,489,818.13
  5. Step 5: Solve for x
    x = 2,489,818.13/2,436.32
  6. Step 6: Final answer
    x = 1,021.96

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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.