Home / 2,336.70-3,224.68-1,288.76

Finding the Fourth Proportional to 2,336.70, 3,224.68 and 1,288.76

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Solution

The fourth proportional to 2,336.70, 3,224.68 and 1,288.76 is: 1,778.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,336.70 : 3,224.68 = 1,288.76 : x
  2. Step 2: Convert to fraction form
    2,336.70/3,224.68 = 1,288.76/x
  3. Step 3: Cross multiply
    2,336.70x = 3,224.68 × 1,288.76
  4. Step 4: Simplify right side
    2,336.70x = 4,155,838.60
  5. Step 5: Solve for x
    x = 4,155,838.60/2,336.70
  6. Step 6: Final answer
    x = 1,778.51

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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.