Home / 2,783.52-3,838.68-1,897.56

Finding the Fourth Proportional to 2,783.52, 3,838.68 and 1,897.56

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Solution

The fourth proportional to 2,783.52, 3,838.68 and 1,897.56 is: 2,616.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.52 : 3,838.68 = 1,897.56 : x
  2. Step 2: Convert to fraction form
    2,783.52/3,838.68 = 1,897.56/x
  3. Step 3: Cross multiply
    2,783.52x = 3,838.68 × 1,897.56
  4. Step 4: Simplify right side
    2,783.52x = 7,284,125.62
  5. Step 5: Solve for x
    x = 7,284,125.62/2,783.52
  6. Step 6: Final answer
    x = 2,616.88

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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.