Home / 3,833.91-5,288.66-2,638.76

Finding the Fourth Proportional to 3,833.91, 5,288.66 and 2,638.76

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Solution

The fourth proportional to 3,833.91, 5,288.66 and 2,638.76 is: 3,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.91 : 5,288.66 = 2,638.76 : x
  2. Step 2: Convert to fraction form
    3,833.91/5,288.66 = 2,638.76/x
  3. Step 3: Cross multiply
    3,833.91x = 5,288.66 × 2,638.76
  4. Step 4: Simplify right side
    3,833.91x = 13,955,474.72
  5. Step 5: Solve for x
    x = 13,955,474.72/3,833.91
  6. Step 6: Final answer
    x = 3,640.01

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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.