Home / 3,028.32-4,181.88-2,864.64

Finding the Fourth Proportional to 3,028.32, 4,181.88 and 2,864.64

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Solution

The fourth proportional to 3,028.32, 4,181.88 and 2,864.64 is: 3,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.32 : 4,181.88 = 2,864.64 : x
  2. Step 2: Convert to fraction form
    3,028.32/4,181.88 = 2,864.64/x
  3. Step 3: Cross multiply
    3,028.32x = 4,181.88 × 2,864.64
  4. Step 4: Simplify right side
    3,028.32x = 11,979,580.72
  5. Step 5: Solve for x
    x = 11,979,580.72/3,028.32
  6. Step 6: Final answer
    x = 3,955.85

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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.