Home / 4,090.88-5,645.03-2,389.11

Finding the Fourth Proportional to 4,090.88, 5,645.03 and 2,389.11

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Solution

The fourth proportional to 4,090.88, 5,645.03 and 2,389.11 is: 3,296.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.88 : 5,645.03 = 2,389.11 : x
  2. Step 2: Convert to fraction form
    4,090.88/5,645.03 = 2,389.11/x
  3. Step 3: Cross multiply
    4,090.88x = 5,645.03 × 2,389.11
  4. Step 4: Simplify right side
    4,090.88x = 13,486,585.68
  5. Step 5: Solve for x
    x = 13,486,585.68/4,090.88
  6. Step 6: Final answer
    x = 3,296.75

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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.