Home / 3,086.31-4,260.50-1,968.74

Finding the Fourth Proportional to 3,086.31, 4,260.50 and 1,968.74

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Solution

The fourth proportional to 3,086.31, 4,260.50 and 1,968.74 is: 2,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.31 : 4,260.50 = 1,968.74 : x
  2. Step 2: Convert to fraction form
    3,086.31/4,260.50 = 1,968.74/x
  3. Step 3: Cross multiply
    3,086.31x = 4,260.50 × 1,968.74
  4. Step 4: Simplify right side
    3,086.31x = 8,387,785.62
  5. Step 5: Solve for x
    x = 8,387,785.62/3,086.31
  6. Step 6: Final answer
    x = 2,717.74

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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.