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Finding the Fourth Proportional to 5,449.50, 8,174.37 and 1,345.50

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Solution

The fourth proportional to 5,449.50, 8,174.37 and 1,345.50 is: 2,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.50 : 8,174.37 = 1,345.50 : x
  2. Step 2: Convert to fraction form
    5,449.50/8,174.37 = 1,345.50/x
  3. Step 3: Cross multiply
    5,449.50x = 8,174.37 × 1,345.50
  4. Step 4: Simplify right side
    5,449.50x = 10,998,614.84
  5. Step 5: Solve for x
    x = 10,998,614.84/5,449.50
  6. Step 6: Final answer
    x = 2,018.28

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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.