Home / 3,945.59-5,918.37-1,605.56

Finding the Fourth Proportional to 3,945.59, 5,918.37 and 1,605.56

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Solution

The fourth proportional to 3,945.59, 5,918.37 and 1,605.56 is: 2,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.59 : 5,918.37 = 1,605.56 : x
  2. Step 2: Convert to fraction form
    3,945.59/5,918.37 = 1,605.56/x
  3. Step 3: Cross multiply
    3,945.59x = 5,918.37 × 1,605.56
  4. Step 4: Simplify right side
    3,945.59x = 9,502,298.14
  5. Step 5: Solve for x
    x = 9,502,298.14/3,945.59
  6. Step 6: Final answer
    x = 2,408.33

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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.