Home / 2,336.62-3,224.48-1,288.70

Finding the Fourth Proportional to 2,336.62, 3,224.48 and 1,288.70

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Solution

The fourth proportional to 2,336.62, 3,224.48 and 1,288.70 is: 1,778.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,336.62 : 3,224.48 = 1,288.70 : x
  2. Step 2: Convert to fraction form
    2,336.62/3,224.48 = 1,288.70/x
  3. Step 3: Cross multiply
    2,336.62x = 3,224.48 × 1,288.70
  4. Step 4: Simplify right side
    2,336.62x = 4,155,387.38
  5. Step 5: Solve for x
    x = 4,155,387.38/2,336.62
  6. Step 6: Final answer
    x = 1,778.38

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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.