Home / 6,143.80-9,213.45-1,984.90

Finding the Fourth Proportional to 6,143.80, 9,213.45 and 1,984.90

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Solution

The fourth proportional to 6,143.80, 9,213.45 and 1,984.90 is: 2,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.80 : 9,213.45 = 1,984.90 : x
  2. Step 2: Convert to fraction form
    6,143.80/9,213.45 = 1,984.90/x
  3. Step 3: Cross multiply
    6,143.80x = 9,213.45 × 1,984.90
  4. Step 4: Simplify right side
    6,143.80x = 18,287,776.91
  5. Step 5: Solve for x
    x = 18,287,776.91/6,143.80
  6. Step 6: Final answer
    x = 2,976.62

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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.