Home / 4,207.68-6,311.52-2,015.28

Finding the Fourth Proportional to 4,207.68, 6,311.52 and 2,015.28

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Solution

The fourth proportional to 4,207.68, 6,311.52 and 2,015.28 is: 3,022.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.68 : 6,311.52 = 2,015.28 : x
  2. Step 2: Convert to fraction form
    4,207.68/6,311.52 = 2,015.28/x
  3. Step 3: Cross multiply
    4,207.68x = 6,311.52 × 2,015.28
  4. Step 4: Simplify right side
    4,207.68x = 12,719,480.03
  5. Step 5: Solve for x
    x = 12,719,480.03/4,207.68
  6. Step 6: Final answer
    x = 3,022.92

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1.5x scale

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.