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Finding the Fourth Proportional to 1,095.29, 1,643.54 and 892.38

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Solution

The fourth proportional to 1,095.29, 1,643.54 and 892.38 is: 1,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.29 : 1,643.54 = 892.38 : x
  2. Step 2: Convert to fraction form
    1,095.29/1,643.54 = 892.38/x
  3. Step 3: Cross multiply
    1,095.29x = 1,643.54 × 892.38
  4. Step 4: Simplify right side
    1,095.29x = 1,466,657.76
  5. Step 5: Solve for x
    x = 1,466,657.76/1,095.29
  6. Step 6: Final answer
    x = 1,339.06

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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.