Home / 5,514.78-8,270.28-1,618.14

Finding the Fourth Proportional to 5,514.78, 8,270.28 and 1,618.14

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Solution

The fourth proportional to 5,514.78, 8,270.28 and 1,618.14 is: 2,426.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514.78 : 8,270.28 = 1,618.14 : x
  2. Step 2: Convert to fraction form
    5,514.78/8,270.28 = 1,618.14/x
  3. Step 3: Cross multiply
    5,514.78x = 8,270.28 × 1,618.14
  4. Step 4: Simplify right side
    5,514.78x = 13,382,470.88
  5. Step 5: Solve for x
    x = 13,382,470.88/5,514.78
  6. Step 6: Final answer
    x = 2,426.66

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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.