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Finding the Fourth Proportional to 4,321.43, 5,964.46 and 2,810.88

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Solution

The fourth proportional to 4,321.43, 5,964.46 and 2,810.88 is: 3,879.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.43 : 5,964.46 = 2,810.88 : x
  2. Step 2: Convert to fraction form
    4,321.43/5,964.46 = 2,810.88/x
  3. Step 3: Cross multiply
    4,321.43x = 5,964.46 × 2,810.88
  4. Step 4: Simplify right side
    4,321.43x = 16,765,381.32
  5. Step 5: Solve for x
    x = 16,765,381.32/4,321.43
  6. Step 6: Final answer
    x = 3,879.59

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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.