Home / 2,291.55-3,162.24-1,296.85

Finding the Fourth Proportional to 2,291.55, 3,162.24 and 1,296.85

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Solution

The fourth proportional to 2,291.55, 3,162.24 and 1,296.85 is: 1,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.55 : 3,162.24 = 1,296.85 : x
  2. Step 2: Convert to fraction form
    2,291.55/3,162.24 = 1,296.85/x
  3. Step 3: Cross multiply
    2,291.55x = 3,162.24 × 1,296.85
  4. Step 4: Simplify right side
    2,291.55x = 4,100,950.94
  5. Step 5: Solve for x
    x = 4,100,950.94/2,291.55
  6. Step 6: Final answer
    x = 1,789.60

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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.