Home / 3,215.58-4,433.04-3,145.73

Finding the Fourth Proportional to 3,215.58, 4,433.04 and 3,145.73

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Solution

The fourth proportional to 3,215.58, 4,433.04 and 3,145.73 is: 4,336.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.58 : 4,433.04 = 3,145.73 : x
  2. Step 2: Convert to fraction form
    3,215.58/4,433.04 = 3,145.73/x
  3. Step 3: Cross multiply
    3,215.58x = 4,433.04 × 3,145.73
  4. Step 4: Simplify right side
    3,215.58x = 13,945,124.75
  5. Step 5: Solve for x
    x = 13,945,124.75/3,215.58
  6. Step 6: Final answer
    x = 4,336.74

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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.