Home / 2,489.07-3,434.72-1,369.83

Finding the Fourth Proportional to 2,489.07, 3,434.72 and 1,369.83

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Solution

The fourth proportional to 2,489.07, 3,434.72 and 1,369.83 is: 1,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.07 : 3,434.72 = 1,369.83 : x
  2. Step 2: Convert to fraction form
    2,489.07/3,434.72 = 1,369.83/x
  3. Step 3: Cross multiply
    2,489.07x = 3,434.72 × 1,369.83
  4. Step 4: Simplify right side
    2,489.07x = 4,704,975.65
  5. Step 5: Solve for x
    x = 4,704,975.65/2,489.07
  6. Step 6: Final answer
    x = 1,890.25

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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.