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Finding the Fourth Proportional to 3,216.87, 4,821.66 and 1,755.63

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Solution

The fourth proportional to 3,216.87, 4,821.66 and 1,755.63 is: 2,631.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.87 : 4,821.66 = 1,755.63 : x
  2. Step 2: Convert to fraction form
    3,216.87/4,821.66 = 1,755.63/x
  3. Step 3: Cross multiply
    3,216.87x = 4,821.66 × 1,755.63
  4. Step 4: Simplify right side
    3,216.87x = 8,465,050.95
  5. Step 5: Solve for x
    x = 8,465,050.95/3,216.87
  6. Step 6: Final answer
    x = 2,631.46

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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.