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Finding the Fourth Proportional to 5,455.26, 8,184.06 and 1,945.44

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Solution

The fourth proportional to 5,455.26, 8,184.06 and 1,945.44 is: 2,918.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.26 : 8,184.06 = 1,945.44 : x
  2. Step 2: Convert to fraction form
    5,455.26/8,184.06 = 1,945.44/x
  3. Step 3: Cross multiply
    5,455.26x = 8,184.06 × 1,945.44
  4. Step 4: Simplify right side
    5,455.26x = 15,921,597.69
  5. Step 5: Solve for x
    x = 15,921,597.69/5,455.26
  6. Step 6: Final answer
    x = 2,918.58

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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.