Home / 1,911.72-2,652.35-1,894.44

Finding the Fourth Proportional to 1,911.72, 2,652.35 and 1,894.44

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Solution

The fourth proportional to 1,911.72, 2,652.35 and 1,894.44 is: 2,628.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.72 : 2,652.35 = 1,894.44 : x
  2. Step 2: Convert to fraction form
    1,911.72/2,652.35 = 1,894.44/x
  3. Step 3: Cross multiply
    1,911.72x = 2,652.35 × 1,894.44
  4. Step 4: Simplify right side
    1,911.72x = 5,024,717.93
  5. Step 5: Solve for x
    x = 5,024,717.93/1,911.72
  6. Step 6: Final answer
    x = 2,628.38

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.