Home / 2,629.62-3,944.91-1,090.74

Finding the Fourth Proportional to 2,629.62, 3,944.91 and 1,090.74

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Solution

The fourth proportional to 2,629.62, 3,944.91 and 1,090.74 is: 1,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.62 : 3,944.91 = 1,090.74 : x
  2. Step 2: Convert to fraction form
    2,629.62/3,944.91 = 1,090.74/x
  3. Step 3: Cross multiply
    2,629.62x = 3,944.91 × 1,090.74
  4. Step 4: Simplify right side
    2,629.62x = 4,302,871.13
  5. Step 5: Solve for x
    x = 4,302,871.13/2,629.62
  6. Step 6: Final answer
    x = 1,636.31

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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.