Home / 4,638.60-6,398.82-2,869.56

Finding the Fourth Proportional to 4,638.60, 6,398.82 and 2,869.56

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Solution

The fourth proportional to 4,638.60, 6,398.82 and 2,869.56 is: 3,958.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.60 : 6,398.82 = 2,869.56 : x
  2. Step 2: Convert to fraction form
    4,638.60/6,398.82 = 2,869.56/x
  3. Step 3: Cross multiply
    4,638.60x = 6,398.82 × 2,869.56
  4. Step 4: Simplify right side
    4,638.60x = 18,361,797.92
  5. Step 5: Solve for x
    x = 18,361,797.92/4,638.60
  6. Step 6: Final answer
    x = 3,958.48

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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.