Home / 6,195.80-8,557.30-4,080.78

Finding the Fourth Proportional to 6,195.80, 8,557.30 and 4,080.78

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Solution

The fourth proportional to 6,195.80, 8,557.30 and 4,080.78 is: 5,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,195.80 : 8,557.30 = 4,080.78 : x
  2. Step 2: Convert to fraction form
    6,195.80/8,557.30 = 4,080.78/x
  3. Step 3: Cross multiply
    6,195.80x = 8,557.30 × 4,080.78
  4. Step 4: Simplify right side
    6,195.80x = 34,920,458.69
  5. Step 5: Solve for x
    x = 34,920,458.69/6,195.80
  6. Step 6: Final answer
    x = 5,636.15

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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.