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Finding the Fourth Proportional to 4,234.40, 6,335.40 and 2,776.40

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Solution

The fourth proportional to 4,234.40, 6,335.40 and 2,776.40 is: 4,153.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,234.40 : 6,335.40 = 2,776.40 : x
  2. Step 2: Convert to fraction form
    4,234.40/6,335.40 = 2,776.40/x
  3. Step 3: Cross multiply
    4,234.40x = 6,335.40 × 2,776.40
  4. Step 4: Simplify right side
    4,234.40x = 17,589,604.56
  5. Step 5: Solve for x
    x = 17,589,604.56/4,234.40
  6. Step 6: Final answer
    x = 4,153.98

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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.