Home / 3,131.08-4,696.63-2,543.31

Finding the Fourth Proportional to 3,131.08, 4,696.63 and 2,543.31

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Solution

The fourth proportional to 3,131.08, 4,696.63 and 2,543.31 is: 3,814.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.08 : 4,696.63 = 2,543.31 : x
  2. Step 2: Convert to fraction form
    3,131.08/4,696.63 = 2,543.31/x
  3. Step 3: Cross multiply
    3,131.08x = 4,696.63 × 2,543.31
  4. Step 4: Simplify right side
    3,131.08x = 11,944,979.69
  5. Step 5: Solve for x
    x = 11,944,979.69/3,131.08
  6. Step 6: Final answer
    x = 3,814.97

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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.