Home / 2,719.88-4,078.02-1,422.26

Finding the Fourth Proportional to 2,719.88, 4,078.02 and 1,422.26

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Solution

The fourth proportional to 2,719.88, 4,078.02 and 1,422.26 is: 2,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.88 : 4,078.02 = 1,422.26 : x
  2. Step 2: Convert to fraction form
    2,719.88/4,078.02 = 1,422.26/x
  3. Step 3: Cross multiply
    2,719.88x = 4,078.02 × 1,422.26
  4. Step 4: Simplify right side
    2,719.88x = 5,800,004.73
  5. Step 5: Solve for x
    x = 5,800,004.73/2,719.88
  6. Step 6: Final answer
    x = 2,132.45

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1.5x scale

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.