Home / 5,316.52-7,336.74-3,221.32

Finding the Fourth Proportional to 5,316.52, 7,336.74 and 3,221.32

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Solution

The fourth proportional to 5,316.52, 7,336.74 and 3,221.32 is: 4,445.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.52 : 7,336.74 = 3,221.32 : x
  2. Step 2: Convert to fraction form
    5,316.52/7,336.74 = 3,221.32/x
  3. Step 3: Cross multiply
    5,316.52x = 7,336.74 × 3,221.32
  4. Step 4: Simplify right side
    5,316.52x = 23,633,987.30
  5. Step 5: Solve for x
    x = 23,633,987.30/5,316.52
  6. Step 6: Final answer
    x = 4,445.39

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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.