Home / 3,131.49-4,324.69-2,709.82

Finding the Fourth Proportional to 3,131.49, 4,324.69 and 2,709.82

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Solution

The fourth proportional to 3,131.49, 4,324.69 and 2,709.82 is: 3,742.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.49 : 4,324.69 = 2,709.82 : x
  2. Step 2: Convert to fraction form
    3,131.49/4,324.69 = 2,709.82/x
  3. Step 3: Cross multiply
    3,131.49x = 4,324.69 × 2,709.82
  4. Step 4: Simplify right side
    3,131.49x = 11,719,131.46
  5. Step 5: Solve for x
    x = 11,719,131.46/3,131.49
  6. Step 6: Final answer
    x = 3,742.35

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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.