Home / 2,783.38-3,837.36-1,897.72

Finding the Fourth Proportional to 2,783.38, 3,837.36 and 1,897.72

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Solution

The fourth proportional to 2,783.38, 3,837.36 and 1,897.72 is: 2,616.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.38 : 3,837.36 = 1,897.72 : x
  2. Step 2: Convert to fraction form
    2,783.38/3,837.36 = 1,897.72/x
  3. Step 3: Cross multiply
    2,783.38x = 3,837.36 × 1,897.72
  4. Step 4: Simplify right side
    2,783.38x = 7,282,234.82
  5. Step 5: Solve for x
    x = 7,282,234.82/2,783.38
  6. Step 6: Final answer
    x = 2,616.33

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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.