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Finding the Fourth Proportional to 5,747, 8,620.52 and 1,643

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Solution

The fourth proportional to 5,747, 8,620.52 and 1,643 is: 2,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,747 : 8,620.52 = 1,643 : x
  2. Step 2: Convert to fraction form
    5,747/8,620.52 = 1,643/x
  3. Step 3: Cross multiply
    5,747x = 8,620.52 × 1,643
  4. Step 4: Simplify right side
    5,747x = 14,163,514.36
  5. Step 5: Solve for x
    x = 14,163,514.36/5,747
  6. Step 6: Final answer
    x = 2,464.51

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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.