Home / 3,224.25-4,449.47-1,898.78

Finding the Fourth Proportional to 3,224.25, 4,449.47 and 1,898.78

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Solution

The fourth proportional to 3,224.25, 4,449.47 and 1,898.78 is: 2,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,224.25 : 4,449.47 = 1,898.78 : x
  2. Step 2: Convert to fraction form
    3,224.25/4,449.47 = 1,898.78/x
  3. Step 3: Cross multiply
    3,224.25x = 4,449.47 × 1,898.78
  4. Step 4: Simplify right side
    3,224.25x = 8,448,532.91
  5. Step 5: Solve for x
    x = 8,448,532.91/3,224.25
  6. Step 6: Final answer
    x = 2,620.31

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Half scale
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Double scale
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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.