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Finding the Fourth Proportional to 1,958.93, 2,940.40 and 1,914.84

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Solution

The fourth proportional to 1,958.93, 2,940.40 and 1,914.84 is: 2,874.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.93 : 2,940.40 = 1,914.84 : x
  2. Step 2: Convert to fraction form
    1,958.93/2,940.40 = 1,914.84/x
  3. Step 3: Cross multiply
    1,958.93x = 2,940.40 × 1,914.84
  4. Step 4: Simplify right side
    1,958.93x = 5,630,397.93
  5. Step 5: Solve for x
    x = 5,630,397.93/1,958.93
  6. Step 6: Final answer
    x = 2,874.21

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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.