Home / 3,168.78-4,374.90-2,832.06

Finding the Fourth Proportional to 3,168.78, 4,374.90 and 2,832.06

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Solution

The fourth proportional to 3,168.78, 4,374.90 and 2,832.06 is: 3,910.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.78 : 4,374.90 = 2,832.06 : x
  2. Step 2: Convert to fraction form
    3,168.78/4,374.90 = 2,832.06/x
  3. Step 3: Cross multiply
    3,168.78x = 4,374.90 × 2,832.06
  4. Step 4: Simplify right side
    3,168.78x = 12,389,979.29
  5. Step 5: Solve for x
    x = 12,389,979.29/3,168.78
  6. Step 6: Final answer
    x = 3,910.02

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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.