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Finding the Fourth Proportional to 2,706.29, 3,729.43 and 1,809.02

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Solution

The fourth proportional to 2,706.29, 3,729.43 and 1,809.02 is: 2,492.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,706.29 : 3,729.43 = 1,809.02 : x
  2. Step 2: Convert to fraction form
    2,706.29/3,729.43 = 1,809.02/x
  3. Step 3: Cross multiply
    2,706.29x = 3,729.43 × 1,809.02
  4. Step 4: Simplify right side
    2,706.29x = 6,746,613.46
  5. Step 5: Solve for x
    x = 6,746,613.46/2,706.29
  6. Step 6: Final answer
    x = 2,492.94

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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.