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Finding the Fourth Proportional to 5,343.54, 8,015.31 and 1,447.85

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Solution

The fourth proportional to 5,343.54, 8,015.31 and 1,447.85 is: 2,171.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.54 : 8,015.31 = 1,447.85 : x
  2. Step 2: Convert to fraction form
    5,343.54/8,015.31 = 1,447.85/x
  3. Step 3: Cross multiply
    5,343.54x = 8,015.31 × 1,447.85
  4. Step 4: Simplify right side
    5,343.54x = 11,604,926.51
  5. Step 5: Solve for x
    x = 11,604,926.51/5,343.54
  6. Step 6: Final answer
    x = 2,171.77

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.