Home / 2,963.45-4,090.29-2,081.36

Finding the Fourth Proportional to 2,963.45, 4,090.29 and 2,081.36

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Solution

The fourth proportional to 2,963.45, 4,090.29 and 2,081.36 is: 2,872.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.45 : 4,090.29 = 2,081.36 : x
  2. Step 2: Convert to fraction form
    2,963.45/4,090.29 = 2,081.36/x
  3. Step 3: Cross multiply
    2,963.45x = 4,090.29 × 2,081.36
  4. Step 4: Simplify right side
    2,963.45x = 8,513,365.99
  5. Step 5: Solve for x
    x = 8,513,365.99/2,963.45
  6. Step 6: Final answer
    x = 2,872.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.