Home / 2,577.26-3,860.70-1,188.68

Finding the Fourth Proportional to 2,577.26, 3,860.70 and 1,188.68

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Solution

The fourth proportional to 2,577.26, 3,860.70 and 1,188.68 is: 1,780.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.26 : 3,860.70 = 1,188.68 : x
  2. Step 2: Convert to fraction form
    2,577.26/3,860.70 = 1,188.68/x
  3. Step 3: Cross multiply
    2,577.26x = 3,860.70 × 1,188.68
  4. Step 4: Simplify right side
    2,577.26x = 4,589,136.88
  5. Step 5: Solve for x
    x = 4,589,136.88/2,577.26
  6. Step 6: Final answer
    x = 1,780.63

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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.