Home / 5,144.70-7,099.67-2,786.85

Finding the Fourth Proportional to 5,144.70, 7,099.67 and 2,786.85

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Solution

The fourth proportional to 5,144.70, 7,099.67 and 2,786.85 is: 3,845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.70 : 7,099.67 = 2,786.85 : x
  2. Step 2: Convert to fraction form
    5,144.70/7,099.67 = 2,786.85/x
  3. Step 3: Cross multiply
    5,144.70x = 7,099.67 × 2,786.85
  4. Step 4: Simplify right side
    5,144.70x = 19,785,686.81
  5. Step 5: Solve for x
    x = 19,785,686.81/5,144.70
  6. Step 6: Final answer
    x = 3,845.84

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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.