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Finding the Fourth Proportional to 2,336.71, 3,489.92 and 2,116.90

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Solution

The fourth proportional to 2,336.71, 3,489.92 and 2,116.90 is: 3,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,336.71 : 3,489.92 = 2,116.90 : x
  2. Step 2: Convert to fraction form
    2,336.71/3,489.92 = 2,116.90/x
  3. Step 3: Cross multiply
    2,336.71x = 3,489.92 × 2,116.90
  4. Step 4: Simplify right side
    2,336.71x = 7,387,783.61
  5. Step 5: Solve for x
    x = 7,387,783.61/2,336.71
  6. Step 6: Final answer
    x = 3,161.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.