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Finding the Fourth Proportional to 3,202.76, 4,419.84 and 1,960.76

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Solution

The fourth proportional to 3,202.76, 4,419.84 and 1,960.76 is: 2,705.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,202.76 : 4,419.84 = 1,960.76 : x
  2. Step 2: Convert to fraction form
    3,202.76/4,419.84 = 1,960.76/x
  3. Step 3: Cross multiply
    3,202.76x = 4,419.84 × 1,960.76
  4. Step 4: Simplify right side
    3,202.76x = 8,666,245.48
  5. Step 5: Solve for x
    x = 8,666,245.48/3,202.76
  6. Step 6: Final answer
    x = 2,705.87

Related Problems

Find fourth proportional to 1,601.38, 2,209.92 and 980.38
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.