Home / 2,655.66-3,979.06-1,874.39

Finding the Fourth Proportional to 2,655.66, 3,979.06 and 1,874.39

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Solution

The fourth proportional to 2,655.66, 3,979.06 and 1,874.39 is: 2,808.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.66 : 3,979.06 = 1,874.39 : x
  2. Step 2: Convert to fraction form
    2,655.66/3,979.06 = 1,874.39/x
  3. Step 3: Cross multiply
    2,655.66x = 3,979.06 × 1,874.39
  4. Step 4: Simplify right side
    2,655.66x = 7,458,310.27
  5. Step 5: Solve for x
    x = 7,458,310.27/2,655.66
  6. Step 6: Final answer
    x = 2,808.46

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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.