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Finding the Fourth Proportional to 5,228.88, 7,843.70 and 1,717.98

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Solution

The fourth proportional to 5,228.88, 7,843.70 and 1,717.98 is: 2,577.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.88 : 7,843.70 = 1,717.98 : x
  2. Step 2: Convert to fraction form
    5,228.88/7,843.70 = 1,717.98/x
  3. Step 3: Cross multiply
    5,228.88x = 7,843.70 × 1,717.98
  4. Step 4: Simplify right side
    5,228.88x = 13,475,319.73
  5. Step 5: Solve for x
    x = 13,475,319.73/5,228.88
  6. Step 6: Final answer
    x = 2,577.09

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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.