Home / 5,169.70-7,133.83-2,811.79

Finding the Fourth Proportional to 5,169.70, 7,133.83 and 2,811.79

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Solution

The fourth proportional to 5,169.70, 7,133.83 and 2,811.79 is: 3,880.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.70 : 7,133.83 = 2,811.79 : x
  2. Step 2: Convert to fraction form
    5,169.70/7,133.83 = 2,811.79/x
  3. Step 3: Cross multiply
    5,169.70x = 7,133.83 × 2,811.79
  4. Step 4: Simplify right side
    5,169.70x = 20,058,831.86
  5. Step 5: Solve for x
    x = 20,058,831.86/5,169.70
  6. Step 6: Final answer
    x = 3,880.08

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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.