Home / 2,290.92-3,161.66-1,296.37

Finding the Fourth Proportional to 2,290.92, 3,161.66 and 1,296.37

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Solution

The fourth proportional to 2,290.92, 3,161.66 and 1,296.37 is: 1,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.92 : 3,161.66 = 1,296.37 : x
  2. Step 2: Convert to fraction form
    2,290.92/3,161.66 = 1,296.37/x
  3. Step 3: Cross multiply
    2,290.92x = 3,161.66 × 1,296.37
  4. Step 4: Simplify right side
    2,290.92x = 4,098,681.17
  5. Step 5: Solve for x
    x = 4,098,681.17/2,290.92
  6. Step 6: Final answer
    x = 1,789.10

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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.