Home / 5,515.44-7,609.77-3,157.44

Finding the Fourth Proportional to 5,515.44, 7,609.77 and 3,157.44

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Solution

The fourth proportional to 5,515.44, 7,609.77 and 3,157.44 is: 4,356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.44 : 7,609.77 = 3,157.44 : x
  2. Step 2: Convert to fraction form
    5,515.44/7,609.77 = 3,157.44/x
  3. Step 3: Cross multiply
    5,515.44x = 7,609.77 × 3,157.44
  4. Step 4: Simplify right side
    5,515.44x = 24,027,392.19
  5. Step 5: Solve for x
    x = 24,027,392.19/5,515.44
  6. Step 6: Final answer
    x = 4,356.39

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.