Home / 2,772.42-4,150.64-2,577.80

Finding the Fourth Proportional to 2,772.42, 4,150.64 and 2,577.80

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Solution

The fourth proportional to 2,772.42, 4,150.64 and 2,577.80 is: 3,859.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.42 : 4,150.64 = 2,577.80 : x
  2. Step 2: Convert to fraction form
    2,772.42/4,150.64 = 2,577.80/x
  3. Step 3: Cross multiply
    2,772.42x = 4,150.64 × 2,577.80
  4. Step 4: Simplify right side
    2,772.42x = 10,699,486.15
  5. Step 5: Solve for x
    x = 10,699,486.15/2,772.42
  6. Step 6: Final answer
    x = 3,859.26

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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.