Home / 2,629.16-3,945.50-1,090.16

Finding the Fourth Proportional to 2,629.16, 3,945.50 and 1,090.16

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Solution

The fourth proportional to 2,629.16, 3,945.50 and 1,090.16 is: 1,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.16 : 3,945.50 = 1,090.16 : x
  2. Step 2: Convert to fraction form
    2,629.16/3,945.50 = 1,090.16/x
  3. Step 3: Cross multiply
    2,629.16x = 3,945.50 × 1,090.16
  4. Step 4: Simplify right side
    2,629.16x = 4,301,226.28
  5. Step 5: Solve for x
    x = 4,301,226.28/2,629.16
  6. Step 6: Final answer
    x = 1,635.97

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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.