Home / 3,945.51-5,918.21-2,282.13

Finding the Fourth Proportional to 3,945.51, 5,918.21 and 2,282.13

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Solution

The fourth proportional to 3,945.51, 5,918.21 and 2,282.13 is: 3,423.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.51 : 5,918.21 = 2,282.13 : x
  2. Step 2: Convert to fraction form
    3,945.51/5,918.21 = 2,282.13/x
  3. Step 3: Cross multiply
    3,945.51x = 5,918.21 × 2,282.13
  4. Step 4: Simplify right side
    3,945.51x = 13,506,131.96
  5. Step 5: Solve for x
    x = 13,506,131.96/3,945.51
  6. Step 6: Final answer
    x = 3,423.17

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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.