Home / 4,689.27-6,469.56-2,919.42

Finding the Fourth Proportional to 4,689.27, 6,469.56 and 2,919.42

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Solution

The fourth proportional to 4,689.27, 6,469.56 and 2,919.42 is: 4,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.27 : 6,469.56 = 2,919.42 : x
  2. Step 2: Convert to fraction form
    4,689.27/6,469.56 = 2,919.42/x
  3. Step 3: Cross multiply
    4,689.27x = 6,469.56 × 2,919.42
  4. Step 4: Simplify right side
    4,689.27x = 18,887,362.86
  5. Step 5: Solve for x
    x = 18,887,362.86/4,689.27
  6. Step 6: Final answer
    x = 4,027.78

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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.