Home / 2,336.39-3,224.21-1,288.45

Finding the Fourth Proportional to 2,336.39, 3,224.21 and 1,288.45

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Solution

The fourth proportional to 2,336.39, 3,224.21 and 1,288.45 is: 1,778.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,336.39 : 3,224.21 = 1,288.45 : x
  2. Step 2: Convert to fraction form
    2,336.39/3,224.21 = 1,288.45/x
  3. Step 3: Cross multiply
    2,336.39x = 3,224.21 × 1,288.45
  4. Step 4: Simplify right side
    2,336.39x = 4,154,233.37
  5. Step 5: Solve for x
    x = 4,154,233.37/2,336.39
  6. Step 6: Final answer
    x = 1,778.06

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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.