Home / 3,497.20-5,245.80-1,188.70

Finding the Fourth Proportional to 3,497.20, 5,245.80 and 1,188.70

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Solution

The fourth proportional to 3,497.20, 5,245.80 and 1,188.70 is: 1,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,497.20 : 5,245.80 = 1,188.70 : x
  2. Step 2: Convert to fraction form
    3,497.20/5,245.80 = 1,188.70/x
  3. Step 3: Cross multiply
    3,497.20x = 5,245.80 × 1,188.70
  4. Step 4: Simplify right side
    3,497.20x = 6,235,704.43
  5. Step 5: Solve for x
    x = 6,235,704.43/3,497.20
  6. Step 6: Final answer
    x = 1,783.05

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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.