Home / 2,799.13-3,860.24-2,167.64

Finding the Fourth Proportional to 2,799.13, 3,860.24 and 2,167.64

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Solution

The fourth proportional to 2,799.13, 3,860.24 and 2,167.64 is: 2,989.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.13 : 3,860.24 = 2,167.64 : x
  2. Step 2: Convert to fraction form
    2,799.13/3,860.24 = 2,167.64/x
  3. Step 3: Cross multiply
    2,799.13x = 3,860.24 × 2,167.64
  4. Step 4: Simplify right side
    2,799.13x = 8,367,610.63
  5. Step 5: Solve for x
    x = 8,367,610.63/2,799.13
  6. Step 6: Final answer
    x = 2,989.37

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1.5x scale

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.