Home / 1,913.26-2,640.69-1,241.91

Finding the Fourth Proportional to 1,913.26, 2,640.69 and 1,241.91

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Solution

The fourth proportional to 1,913.26, 2,640.69 and 1,241.91 is: 1,714.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.26 : 2,640.69 = 1,241.91 : x
  2. Step 2: Convert to fraction form
    1,913.26/2,640.69 = 1,241.91/x
  3. Step 3: Cross multiply
    1,913.26x = 2,640.69 × 1,241.91
  4. Step 4: Simplify right side
    1,913.26x = 3,279,499.32
  5. Step 5: Solve for x
    x = 3,279,499.32/1,913.26
  6. Step 6: Final answer
    x = 1,714.09

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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.