Home / 4,143.73-6,213.45-1,221.65

Finding the Fourth Proportional to 4,143.73, 6,213.45 and 1,221.65

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Solution

The fourth proportional to 4,143.73, 6,213.45 and 1,221.65 is: 1,831.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.73 : 6,213.45 = 1,221.65 : x
  2. Step 2: Convert to fraction form
    4,143.73/6,213.45 = 1,221.65/x
  3. Step 3: Cross multiply
    4,143.73x = 6,213.45 × 1,221.65
  4. Step 4: Simplify right side
    4,143.73x = 7,590,661.19
  5. Step 5: Solve for x
    x = 7,590,661.19/4,143.73
  6. Step 6: Final answer
    x = 1,831.84

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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.