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Finding the Fourth Proportional to 1,892.26, 2,838.99 and 722.62

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Solution

The fourth proportional to 1,892.26, 2,838.99 and 722.62 is: 1,084.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892.26 : 2,838.99 = 722.62 : x
  2. Step 2: Convert to fraction form
    1,892.26/2,838.99 = 722.62/x
  3. Step 3: Cross multiply
    1,892.26x = 2,838.99 × 722.62
  4. Step 4: Simplify right side
    1,892.26x = 2,051,510.95
  5. Step 5: Solve for x
    x = 2,051,510.95/1,892.26
  6. Step 6: Final answer
    x = 1,084.16

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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.