Home / 5,445.51-8,171.91-1,982.76

Finding the Fourth Proportional to 5,445.51, 8,171.91 and 1,982.76

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Solution

The fourth proportional to 5,445.51, 8,171.91 and 1,982.76 is: 2,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.51 : 8,171.91 = 1,982.76 : x
  2. Step 2: Convert to fraction form
    5,445.51/8,171.91 = 1,982.76/x
  3. Step 3: Cross multiply
    5,445.51x = 8,171.91 × 1,982.76
  4. Step 4: Simplify right side
    5,445.51x = 16,202,936.27
  5. Step 5: Solve for x
    x = 16,202,936.27/5,445.51
  6. Step 6: Final answer
    x = 2,975.47

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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.