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Finding the Fourth Proportional to 2,600.24, 3,898.92 and 867.92

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Solution

The fourth proportional to 2,600.24, 3,898.92 and 867.92 is: 1,301.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.24 : 3,898.92 = 867.92 : x
  2. Step 2: Convert to fraction form
    2,600.24/3,898.92 = 867.92/x
  3. Step 3: Cross multiply
    2,600.24x = 3,898.92 × 867.92
  4. Step 4: Simplify right side
    2,600.24x = 3,383,950.65
  5. Step 5: Solve for x
    x = 3,383,950.65/2,600.24
  6. Step 6: Final answer
    x = 1,301.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.