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Finding the Fourth Proportional to 6,519.52, 9,781.98 and 2,821.06

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Solution

The fourth proportional to 6,519.52, 9,781.98 and 2,821.06 is: 4,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.52 : 9,781.98 = 2,821.06 : x
  2. Step 2: Convert to fraction form
    6,519.52/9,781.98 = 2,821.06/x
  3. Step 3: Cross multiply
    6,519.52x = 9,781.98 × 2,821.06
  4. Step 4: Simplify right side
    6,519.52x = 27,595,552.50
  5. Step 5: Solve for x
    x = 27,595,552.50/6,519.52
  6. Step 6: Final answer
    x = 4,232.76

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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.