Home / 4,215.24-5,815.90-2,722.61

Finding the Fourth Proportional to 4,215.24, 5,815.90 and 2,722.61

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Solution

The fourth proportional to 4,215.24, 5,815.90 and 2,722.61 is: 3,756.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.24 : 5,815.90 = 2,722.61 : x
  2. Step 2: Convert to fraction form
    4,215.24/5,815.90 = 2,722.61/x
  3. Step 3: Cross multiply
    4,215.24x = 5,815.90 × 2,722.61
  4. Step 4: Simplify right side
    4,215.24x = 15,834,445.44
  5. Step 5: Solve for x
    x = 15,834,445.44/4,215.24
  6. Step 6: Final answer
    x = 3,756.48

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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.