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Finding the Fourth Proportional to 2,596.48, 3,894.09 and 864.88

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Solution

The fourth proportional to 2,596.48, 3,894.09 and 864.88 is: 1,297.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,596.48 : 3,894.09 = 864.88 : x
  2. Step 2: Convert to fraction form
    2,596.48/3,894.09 = 864.88/x
  3. Step 3: Cross multiply
    2,596.48x = 3,894.09 × 864.88
  4. Step 4: Simplify right side
    2,596.48x = 3,367,920.56
  5. Step 5: Solve for x
    x = 3,367,920.56/2,596.48
  6. Step 6: Final answer
    x = 1,297.11

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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.