Home / 2,336.21-3,223.96-1,288.27

Finding the Fourth Proportional to 2,336.21, 3,223.96 and 1,288.27

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Solution

The fourth proportional to 2,336.21, 3,223.96 and 1,288.27 is: 1,777.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,336.21 : 3,223.96 = 1,288.27 : x
  2. Step 2: Convert to fraction form
    2,336.21/3,223.96 = 1,288.27/x
  3. Step 3: Cross multiply
    2,336.21x = 3,223.96 × 1,288.27
  4. Step 4: Simplify right side
    2,336.21x = 4,153,331.76
  5. Step 5: Solve for x
    x = 4,153,331.76/2,336.21
  6. Step 6: Final answer
    x = 1,777.81

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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.