Home / 4,142.45-6,213.68-1,220.69

Finding the Fourth Proportional to 4,142.45, 6,213.68 and 1,220.69

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Solution

The fourth proportional to 4,142.45, 6,213.68 and 1,220.69 is: 1,831.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.45 : 6,213.68 = 1,220.69 : x
  2. Step 2: Convert to fraction form
    4,142.45/6,213.68 = 1,220.69/x
  3. Step 3: Cross multiply
    4,142.45x = 6,213.68 × 1,220.69
  4. Step 4: Simplify right side
    4,142.45x = 7,584,977.04
  5. Step 5: Solve for x
    x = 7,584,977.04/4,142.45
  6. Step 6: Final answer
    x = 1,831.04

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Similar ratio
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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.