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Finding the Fourth Proportional to 3,687.99, 5,519.22 and 3,534.90

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Solution

The fourth proportional to 3,687.99, 5,519.22 and 3,534.90 is: 5,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.99 : 5,519.22 = 3,534.90 : x
  2. Step 2: Convert to fraction form
    3,687.99/5,519.22 = 3,534.90/x
  3. Step 3: Cross multiply
    3,687.99x = 5,519.22 × 3,534.90
  4. Step 4: Simplify right side
    3,687.99x = 19,509,890.78
  5. Step 5: Solve for x
    x = 19,509,890.78/3,687.99
  6. Step 6: Final answer
    x = 5,290.11

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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.