Home / 3,139.65-4,331.83-2,243.66

Finding the Fourth Proportional to 3,139.65, 4,331.83 and 2,243.66

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Solution

The fourth proportional to 3,139.65, 4,331.83 and 2,243.66 is: 3,095.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.65 : 4,331.83 = 2,243.66 : x
  2. Step 2: Convert to fraction form
    3,139.65/4,331.83 = 2,243.66/x
  3. Step 3: Cross multiply
    3,139.65x = 4,331.83 × 2,243.66
  4. Step 4: Simplify right side
    3,139.65x = 9,719,153.70
  5. Step 5: Solve for x
    x = 9,719,153.70/3,139.65
  6. Step 6: Final answer
    x = 3,095.62

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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.