Home / 5,427.44-8,141.18-2,138.76

Finding the Fourth Proportional to 5,427.44, 8,141.18 and 2,138.76

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Solution

The fourth proportional to 5,427.44, 8,141.18 and 2,138.76 is: 3,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.44 : 8,141.18 = 2,138.76 : x
  2. Step 2: Convert to fraction form
    5,427.44/8,141.18 = 2,138.76/x
  3. Step 3: Cross multiply
    5,427.44x = 8,141.18 × 2,138.76
  4. Step 4: Simplify right side
    5,427.44x = 17,412,030.14
  5. Step 5: Solve for x
    x = 17,412,030.14/5,427.44
  6. Step 6: Final answer
    x = 3,208.15

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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.