Home / 2,657.22-3,979.35-1,354.74

Finding the Fourth Proportional to 2,657.22, 3,979.35 and 1,354.74

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Solution

The fourth proportional to 2,657.22, 3,979.35 and 1,354.74 is: 2,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.22 : 3,979.35 = 1,354.74 : x
  2. Step 2: Convert to fraction form
    2,657.22/3,979.35 = 1,354.74/x
  3. Step 3: Cross multiply
    2,657.22x = 3,979.35 × 1,354.74
  4. Step 4: Simplify right side
    2,657.22x = 5,390,984.62
  5. Step 5: Solve for x
    x = 5,390,984.62/2,657.22
  6. Step 6: Final answer
    x = 2,028.81

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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.