Home / 3,578.78-5,367.55-1,630.52

Finding the Fourth Proportional to 3,578.78, 5,367.55 and 1,630.52

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Solution

The fourth proportional to 3,578.78, 5,367.55 and 1,630.52 is: 2,445.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.78 : 5,367.55 = 1,630.52 : x
  2. Step 2: Convert to fraction form
    3,578.78/5,367.55 = 1,630.52/x
  3. Step 3: Cross multiply
    3,578.78x = 5,367.55 × 1,630.52
  4. Step 4: Simplify right side
    3,578.78x = 8,751,897.63
  5. Step 5: Solve for x
    x = 8,751,897.63/3,578.78
  6. Step 6: Final answer
    x = 2,445.50

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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.