Home / 2,291.48-3,162.36-1,296.38

Finding the Fourth Proportional to 2,291.48, 3,162.36 and 1,296.38

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Solution

The fourth proportional to 2,291.48, 3,162.36 and 1,296.38 is: 1,789.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.48 : 3,162.36 = 1,296.38 : x
  2. Step 2: Convert to fraction form
    2,291.48/3,162.36 = 1,296.38/x
  3. Step 3: Cross multiply
    2,291.48x = 3,162.36 × 1,296.38
  4. Step 4: Simplify right side
    2,291.48x = 4,099,620.26
  5. Step 5: Solve for x
    x = 4,099,620.26/2,291.48
  6. Step 6: Final answer
    x = 1,789.07

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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.