Home / 4,133.23-6,197.78-1,321.70

Finding the Fourth Proportional to 4,133.23, 6,197.78 and 1,321.70

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Solution

The fourth proportional to 4,133.23, 6,197.78 and 1,321.70 is: 1,981.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,133.23 : 6,197.78 = 1,321.70 : x
  2. Step 2: Convert to fraction form
    4,133.23/6,197.78 = 1,321.70/x
  3. Step 3: Cross multiply
    4,133.23x = 6,197.78 × 1,321.70
  4. Step 4: Simplify right side
    4,133.23x = 8,191,626.28
  5. Step 5: Solve for x
    x = 8,191,626.28/4,133.23
  6. Step 6: Final answer
    x = 1,981.89

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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.