Home / 3,878.35-5,817.42-1,539.61

Finding the Fourth Proportional to 3,878.35, 5,817.42 and 1,539.61

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Solution

The fourth proportional to 3,878.35, 5,817.42 and 1,539.61 is: 2,309.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.35 : 5,817.42 = 1,539.61 : x
  2. Step 2: Convert to fraction form
    3,878.35/5,817.42 = 1,539.61/x
  3. Step 3: Cross multiply
    3,878.35x = 5,817.42 × 1,539.61
  4. Step 4: Simplify right side
    3,878.35x = 8,956,543.46
  5. Step 5: Solve for x
    x = 8,956,543.46/3,878.35
  6. Step 6: Final answer
    x = 2,309.37

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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.