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Finding the Fourth Proportional to 3,833.52, 5,283.24 and 2,783.76

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Solution

The fourth proportional to 3,833.52, 5,283.24 and 2,783.76 is: 3,836.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.52 : 5,283.24 = 2,783.76 : x
  2. Step 2: Convert to fraction form
    3,833.52/5,283.24 = 2,783.76/x
  3. Step 3: Cross multiply
    3,833.52x = 5,283.24 × 2,783.76
  4. Step 4: Simplify right side
    3,833.52x = 14,707,272.18
  5. Step 5: Solve for x
    x = 14,707,272.18/3,833.52
  6. Step 6: Final answer
    x = 3,836.49

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1.5x scale

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.