Home / 3,086.16-4,260.32-1,968.64

Finding the Fourth Proportional to 3,086.16, 4,260.32 and 1,968.64

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Solution

The fourth proportional to 3,086.16, 4,260.32 and 1,968.64 is: 2,717.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.16 : 4,260.32 = 1,968.64 : x
  2. Step 2: Convert to fraction form
    3,086.16/4,260.32 = 1,968.64/x
  3. Step 3: Cross multiply
    3,086.16x = 4,260.32 × 1,968.64
  4. Step 4: Simplify right side
    3,086.16x = 8,387,036.36
  5. Step 5: Solve for x
    x = 8,387,036.36/3,086.16
  6. Step 6: Final answer
    x = 2,717.63

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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.