Home / 7,688.25-11,532.38-3,074.49

Finding the Fourth Proportional to 7,688.25, 11,532.38 and 3,074.49

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Solution

The fourth proportional to 7,688.25, 11,532.38 and 3,074.49 is: 4,611.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.25 : 11,532.38 = 3,074.49 : x
  2. Step 2: Convert to fraction form
    7,688.25/11,532.38 = 3,074.49/x
  3. Step 3: Cross multiply
    7,688.25x = 11,532.38 × 3,074.49
  4. Step 4: Simplify right side
    7,688.25x = 35,456,171.61
  5. Step 5: Solve for x
    x = 35,456,171.61/7,688.25
  6. Step 6: Final answer
    x = 4,611.74

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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.