Home / 6,005.25-9,007.88-2,109.78

Finding the Fourth Proportional to 6,005.25, 9,007.88 and 2,109.78

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Solution

The fourth proportional to 6,005.25, 9,007.88 and 2,109.78 is: 3,164.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,005.25 : 9,007.88 = 2,109.78 : x
  2. Step 2: Convert to fraction form
    6,005.25/9,007.88 = 2,109.78/x
  3. Step 3: Cross multiply
    6,005.25x = 9,007.88 × 2,109.78
  4. Step 4: Simplify right side
    6,005.25x = 19,004,634.52
  5. Step 5: Solve for x
    x = 19,004,634.52/6,005.25
  6. Step 6: Final answer
    x = 3,164.67

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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.