Home / 2,741.12-3,782.22-1,621.16

Finding the Fourth Proportional to 2,741.12, 3,782.22 and 1,621.16

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Solution

The fourth proportional to 2,741.12, 3,782.22 and 1,621.16 is: 2,236.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,741.12 : 3,782.22 = 1,621.16 : x
  2. Step 2: Convert to fraction form
    2,741.12/3,782.22 = 1,621.16/x
  3. Step 3: Cross multiply
    2,741.12x = 3,782.22 × 1,621.16
  4. Step 4: Simplify right side
    2,741.12x = 6,131,564.86
  5. Step 5: Solve for x
    x = 6,131,564.86/2,741.12
  6. Step 6: Final answer
    x = 2,236.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.