Home / 4,147.32-6,220.68-1,375.80

Finding the Fourth Proportional to 4,147.32, 6,220.68 and 1,375.80

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Solution

The fourth proportional to 4,147.32, 6,220.68 and 1,375.80 is: 2,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.32 : 6,220.68 = 1,375.80 : x
  2. Step 2: Convert to fraction form
    4,147.32/6,220.68 = 1,375.80/x
  3. Step 3: Cross multiply
    4,147.32x = 6,220.68 × 1,375.80
  4. Step 4: Simplify right side
    4,147.32x = 8,558,411.54
  5. Step 5: Solve for x
    x = 8,558,411.54/4,147.32
  6. Step 6: Final answer
    x = 2,063.60

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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.