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Finding the Fourth Proportional to 2,099.69, 3,149.54 and 713.03

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Solution

The fourth proportional to 2,099.69, 3,149.54 and 713.03 is: 1,069.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099.69 : 3,149.54 = 713.03 : x
  2. Step 2: Convert to fraction form
    2,099.69/3,149.54 = 713.03/x
  3. Step 3: Cross multiply
    2,099.69x = 3,149.54 × 713.03
  4. Step 4: Simplify right side
    2,099.69x = 2,245,712.94
  5. Step 5: Solve for x
    x = 2,245,712.94/2,099.69
  6. Step 6: Final answer
    x = 1,069.55

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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.