Home / 2,799.22-3,862.86-1,540.30

Finding the Fourth Proportional to 2,799.22, 3,862.86 and 1,540.30

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Solution

The fourth proportional to 2,799.22, 3,862.86 and 1,540.30 is: 2,125.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.22 : 3,862.86 = 1,540.30 : x
  2. Step 2: Convert to fraction form
    2,799.22/3,862.86 = 1,540.30/x
  3. Step 3: Cross multiply
    2,799.22x = 3,862.86 × 1,540.30
  4. Step 4: Simplify right side
    2,799.22x = 5,949,963.26
  5. Step 5: Solve for x
    x = 5,949,963.26/2,799.22
  6. Step 6: Final answer
    x = 2,125.58

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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.