Home / 6,645.20-9,170.44-3,661.05

Finding the Fourth Proportional to 6,645.20, 9,170.44 and 3,661.05

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Solution

The fourth proportional to 6,645.20, 9,170.44 and 3,661.05 is: 5,052.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.20 : 9,170.44 = 3,661.05 : x
  2. Step 2: Convert to fraction form
    6,645.20/9,170.44 = 3,661.05/x
  3. Step 3: Cross multiply
    6,645.20x = 9,170.44 × 3,661.05
  4. Step 4: Simplify right side
    6,645.20x = 33,573,423.31
  5. Step 5: Solve for x
    x = 33,573,423.31/6,645.20
  6. Step 6: Final answer
    x = 5,052.28

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Half scale
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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.