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Finding the Fourth Proportional to 7,240.99, 10,862.94 and 3,080.98

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Solution

The fourth proportional to 7,240.99, 10,862.94 and 3,080.98 is: 4,622.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.99 : 10,862.94 = 3,080.98 : x
  2. Step 2: Convert to fraction form
    7,240.99/10,862.94 = 3,080.98/x
  3. Step 3: Cross multiply
    7,240.99x = 10,862.94 × 3,080.98
  4. Step 4: Simplify right side
    7,240.99x = 33,468,500.88
  5. Step 5: Solve for x
    x = 33,468,500.88/7,240.99
  6. Step 6: Final answer
    x = 4,622.09

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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.