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Finding the Fourth Proportional to 2,173.94, 2,998.94 and 1,375.92

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Solution

The fourth proportional to 2,173.94, 2,998.94 and 1,375.92 is: 1,898.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.94 : 2,998.94 = 1,375.92 : x
  2. Step 2: Convert to fraction form
    2,173.94/2,998.94 = 1,375.92/x
  3. Step 3: Cross multiply
    2,173.94x = 2,998.94 × 1,375.92
  4. Step 4: Simplify right side
    2,173.94x = 4,126,294.65
  5. Step 5: Solve for x
    x = 4,126,294.65/2,173.94
  6. Step 6: Final answer
    x = 1,898.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.