Home / 4,422.78-6,634.62-1,260.24

Finding the Fourth Proportional to 4,422.78, 6,634.62 and 1,260.24

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Solution

The fourth proportional to 4,422.78, 6,634.62 and 1,260.24 is: 1,890.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,422.78 : 6,634.62 = 1,260.24 : x
  2. Step 2: Convert to fraction form
    4,422.78/6,634.62 = 1,260.24/x
  3. Step 3: Cross multiply
    4,422.78x = 6,634.62 × 1,260.24
  4. Step 4: Simplify right side
    4,422.78x = 8,361,213.51
  5. Step 5: Solve for x
    x = 8,361,213.51/4,422.78
  6. Step 6: Final answer
    x = 1,890.49

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.