Home / 3,756.40-5,183.80-2,077.81

Finding the Fourth Proportional to 3,756.40, 5,183.80 and 2,077.81

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Solution

The fourth proportional to 3,756.40, 5,183.80 and 2,077.81 is: 2,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.40 : 5,183.80 = 2,077.81 : x
  2. Step 2: Convert to fraction form
    3,756.40/5,183.80 = 2,077.81/x
  3. Step 3: Cross multiply
    3,756.40x = 5,183.80 × 2,077.81
  4. Step 4: Simplify right side
    3,756.40x = 10,770,951.48
  5. Step 5: Solve for x
    x = 10,770,951.48/3,756.40
  6. Step 6: Final answer
    x = 2,867.36

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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.