Home / 4,243.14-6,364.72-1,321.45

Finding the Fourth Proportional to 4,243.14, 6,364.72 and 1,321.45

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Solution

The fourth proportional to 4,243.14, 6,364.72 and 1,321.45 is: 1,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.14 : 6,364.72 = 1,321.45 : x
  2. Step 2: Convert to fraction form
    4,243.14/6,364.72 = 1,321.45/x
  3. Step 3: Cross multiply
    4,243.14x = 6,364.72 × 1,321.45
  4. Step 4: Simplify right side
    4,243.14x = 8,410,659.24
  5. Step 5: Solve for x
    x = 8,410,659.24/4,243.14
  6. Step 6: Final answer
    x = 1,982.18

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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.