Home / 4,143.45-6,215.18-1,221.83

Finding the Fourth Proportional to 4,143.45, 6,215.18 and 1,221.83

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Solution

The fourth proportional to 4,143.45, 6,215.18 and 1,221.83 is: 1,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.45 : 6,215.18 = 1,221.83 : x
  2. Step 2: Convert to fraction form
    4,143.45/6,215.18 = 1,221.83/x
  3. Step 3: Cross multiply
    4,143.45x = 6,215.18 × 1,221.83
  4. Step 4: Simplify right side
    4,143.45x = 7,593,921.33
  5. Step 5: Solve for x
    x = 7,593,921.33/4,143.45
  6. Step 6: Final answer
    x = 1,832.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.