Home / 2,777.22-4,170.51-1,858.68

Finding the Fourth Proportional to 2,777.22, 4,170.51 and 1,858.68

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Solution

The fourth proportional to 2,777.22, 4,170.51 and 1,858.68 is: 2,791.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.22 : 4,170.51 = 1,858.68 : x
  2. Step 2: Convert to fraction form
    2,777.22/4,170.51 = 1,858.68/x
  3. Step 3: Cross multiply
    2,777.22x = 4,170.51 × 1,858.68
  4. Step 4: Simplify right side
    2,777.22x = 7,751,643.53
  5. Step 5: Solve for x
    x = 7,751,643.53/2,777.22
  6. Step 6: Final answer
    x = 2,791.15

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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.