Home / 2,614.62-3,918.47-1,918.02

Finding the Fourth Proportional to 2,614.62, 3,918.47 and 1,918.02

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Solution

The fourth proportional to 2,614.62, 3,918.47 and 1,918.02 is: 2,874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,614.62 : 3,918.47 = 1,918.02 : x
  2. Step 2: Convert to fraction form
    2,614.62/3,918.47 = 1,918.02/x
  3. Step 3: Cross multiply
    2,614.62x = 3,918.47 × 1,918.02
  4. Step 4: Simplify right side
    2,614.62x = 7,515,717.27
  5. Step 5: Solve for x
    x = 7,515,717.27/2,614.62
  6. Step 6: Final answer
    x = 2,874.50

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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.