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Finding the Fourth Proportional to 2,586.14, 3,879.82 and 737.28

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Solution

The fourth proportional to 2,586.14, 3,879.82 and 737.28 is: 1,106.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.14 : 3,879.82 = 737.28 : x
  2. Step 2: Convert to fraction form
    2,586.14/3,879.82 = 737.28/x
  3. Step 3: Cross multiply
    2,586.14x = 3,879.82 × 737.28
  4. Step 4: Simplify right side
    2,586.14x = 2,860,514.61
  5. Step 5: Solve for x
    x = 2,860,514.61/2,586.14
  6. Step 6: Final answer
    x = 1,106.09

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1.5x scale

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.