Home / 1,664.62-2,495.07-1,119.69

Finding the Fourth Proportional to 1,664.62, 2,495.07 and 1,119.69

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Solution

The fourth proportional to 1,664.62, 2,495.07 and 1,119.69 is: 1,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.62 : 2,495.07 = 1,119.69 : x
  2. Step 2: Convert to fraction form
    1,664.62/2,495.07 = 1,119.69/x
  3. Step 3: Cross multiply
    1,664.62x = 2,495.07 × 1,119.69
  4. Step 4: Simplify right side
    1,664.62x = 2,793,704.93
  5. Step 5: Solve for x
    x = 2,793,704.93/1,664.62
  6. Step 6: Final answer
    x = 1,678.29

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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.