Home / 6,747.21-10,120.74-3,785.64

Finding the Fourth Proportional to 6,747.21, 10,120.74 and 3,785.64

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Solution

The fourth proportional to 6,747.21, 10,120.74 and 3,785.64 is: 5,678.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,747.21 : 10,120.74 = 3,785.64 : x
  2. Step 2: Convert to fraction form
    6,747.21/10,120.74 = 3,785.64/x
  3. Step 3: Cross multiply
    6,747.21x = 10,120.74 × 3,785.64
  4. Step 4: Simplify right side
    6,747.21x = 38,313,478.17
  5. Step 5: Solve for x
    x = 38,313,478.17/6,747.21
  6. Step 6: Final answer
    x = 5,678.42

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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.