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Finding the Fourth Proportional to 1,893.61, 2,613.86 and 1,097.29

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Solution

The fourth proportional to 1,893.61, 2,613.86 and 1,097.29 is: 1,514.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.61 : 2,613.86 = 1,097.29 : x
  2. Step 2: Convert to fraction form
    1,893.61/2,613.86 = 1,097.29/x
  3. Step 3: Cross multiply
    1,893.61x = 2,613.86 × 1,097.29
  4. Step 4: Simplify right side
    1,893.61x = 2,868,162.44
  5. Step 5: Solve for x
    x = 2,868,162.44/1,893.61
  6. Step 6: Final answer
    x = 1,514.65

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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.