Home / 3,430.86-5,144.49-1,090.14

Finding the Fourth Proportional to 3,430.86, 5,144.49 and 1,090.14

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Solution

The fourth proportional to 3,430.86, 5,144.49 and 1,090.14 is: 1,634.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.86 : 5,144.49 = 1,090.14 : x
  2. Step 2: Convert to fraction form
    3,430.86/5,144.49 = 1,090.14/x
  3. Step 3: Cross multiply
    3,430.86x = 5,144.49 × 1,090.14
  4. Step 4: Simplify right side
    3,430.86x = 5,608,214.33
  5. Step 5: Solve for x
    x = 5,608,214.33/3,430.86
  6. Step 6: Final answer
    x = 1,634.64

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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.