Home / 2,097.36-2,894.13-1,311.26

Finding the Fourth Proportional to 2,097.36, 2,894.13 and 1,311.26

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Solution

The fourth proportional to 2,097.36, 2,894.13 and 1,311.26 is: 1,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,097.36 : 2,894.13 = 1,311.26 : x
  2. Step 2: Convert to fraction form
    2,097.36/2,894.13 = 1,311.26/x
  3. Step 3: Cross multiply
    2,097.36x = 2,894.13 × 1,311.26
  4. Step 4: Simplify right side
    2,097.36x = 3,794,942.43
  5. Step 5: Solve for x
    x = 3,794,942.43/2,097.36
  6. Step 6: Final answer
    x = 1,809.39

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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.