Home / 3,945.21-5,918.13-2,301.93

Finding the Fourth Proportional to 3,945.21, 5,918.13 and 2,301.93

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Solution

The fourth proportional to 3,945.21, 5,918.13 and 2,301.93 is: 3,453.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.21 : 5,918.13 = 2,301.93 : x
  2. Step 2: Convert to fraction form
    3,945.21/5,918.13 = 2,301.93/x
  3. Step 3: Cross multiply
    3,945.21x = 5,918.13 × 2,301.93
  4. Step 4: Simplify right side
    3,945.21x = 13,623,120.99
  5. Step 5: Solve for x
    x = 13,623,120.99/3,945.21
  6. Step 6: Final answer
    x = 3,453.08

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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.