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Finding the Fourth Proportional to 5,714.52, 8,571.72 and 1,819.26

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Solution

The fourth proportional to 5,714.52, 8,571.72 and 1,819.26 is: 2,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,714.52 : 8,571.72 = 1,819.26 : x
  2. Step 2: Convert to fraction form
    5,714.52/8,571.72 = 1,819.26/x
  3. Step 3: Cross multiply
    5,714.52x = 8,571.72 × 1,819.26
  4. Step 4: Simplify right side
    5,714.52x = 15,594,187.33
  5. Step 5: Solve for x
    x = 15,594,187.33/5,714.52
  6. Step 6: Final answer
    x = 2,728.87

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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.