Home / 4,092.12-6,139.08-2,143.80

Finding the Fourth Proportional to 4,092.12, 6,139.08 and 2,143.80

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Solution

The fourth proportional to 4,092.12, 6,139.08 and 2,143.80 is: 3,216.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,092.12 : 6,139.08 = 2,143.80 : x
  2. Step 2: Convert to fraction form
    4,092.12/6,139.08 = 2,143.80/x
  3. Step 3: Cross multiply
    4,092.12x = 6,139.08 × 2,143.80
  4. Step 4: Simplify right side
    4,092.12x = 13,160,959.70
  5. Step 5: Solve for x
    x = 13,160,959.70/4,092.12
  6. Step 6: Final answer
    x = 3,216.17

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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.