Home / 7,138.46-10,701.53-2,758.99

Finding the Fourth Proportional to 7,138.46, 10,701.53 and 2,758.99

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Solution

The fourth proportional to 7,138.46, 10,701.53 and 2,758.99 is: 4,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.46 : 10,701.53 = 2,758.99 : x
  2. Step 2: Convert to fraction form
    7,138.46/10,701.53 = 2,758.99/x
  3. Step 3: Cross multiply
    7,138.46x = 10,701.53 × 2,758.99
  4. Step 4: Simplify right side
    7,138.46x = 29,525,414.25
  5. Step 5: Solve for x
    x = 29,525,414.25/7,138.46
  6. Step 6: Final answer
    x = 4,136.10

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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.