Home / 4,215.87-5,817.92-2,447.55

Finding the Fourth Proportional to 4,215.87, 5,817.92 and 2,447.55

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Solution

The fourth proportional to 4,215.87, 5,817.92 and 2,447.55 is: 3,377.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.87 : 5,817.92 = 2,447.55 : x
  2. Step 2: Convert to fraction form
    4,215.87/5,817.92 = 2,447.55/x
  3. Step 3: Cross multiply
    4,215.87x = 5,817.92 × 2,447.55
  4. Step 4: Simplify right side
    4,215.87x = 14,239,637.86
  5. Step 5: Solve for x
    x = 14,239,637.86/4,215.87
  6. Step 6: Final answer
    x = 3,377.63

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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.