Home / 4,105.80-6,127.09-3,280.20

Finding the Fourth Proportional to 4,105.80, 6,127.09 and 3,280.20

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Solution

The fourth proportional to 4,105.80, 6,127.09 and 3,280.20 is: 4,895.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.80 : 6,127.09 = 3,280.20 : x
  2. Step 2: Convert to fraction form
    4,105.80/6,127.09 = 3,280.20/x
  3. Step 3: Cross multiply
    4,105.80x = 6,127.09 × 3,280.20
  4. Step 4: Simplify right side
    4,105.80x = 20,098,080.62
  5. Step 5: Solve for x
    x = 20,098,080.62/4,105.80
  6. Step 6: Final answer
    x = 4,895.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.