Home / 2,078.60-2,867.46-1,331.96

Finding the Fourth Proportional to 2,078.60, 2,867.46 and 1,331.96

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Solution

The fourth proportional to 2,078.60, 2,867.46 and 1,331.96 is: 1,837.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.60 : 2,867.46 = 1,331.96 : x
  2. Step 2: Convert to fraction form
    2,078.60/2,867.46 = 1,331.96/x
  3. Step 3: Cross multiply
    2,078.60x = 2,867.46 × 1,331.96
  4. Step 4: Simplify right side
    2,078.60x = 3,819,342.02
  5. Step 5: Solve for x
    x = 3,819,342.02/2,078.60
  6. Step 6: Final answer
    x = 1,837.46

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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.