Home / 4,234.29-6,355.34-2,155.78

Finding the Fourth Proportional to 4,234.29, 6,355.34 and 2,155.78

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Solution

The fourth proportional to 4,234.29, 6,355.34 and 2,155.78 is: 3,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,234.29 : 6,355.34 = 2,155.78 : x
  2. Step 2: Convert to fraction form
    4,234.29/6,355.34 = 2,155.78/x
  3. Step 3: Cross multiply
    4,234.29x = 6,355.34 × 2,155.78
  4. Step 4: Simplify right side
    4,234.29x = 13,700,714.05
  5. Step 5: Solve for x
    x = 13,700,714.05/4,234.29
  6. Step 6: Final answer
    x = 3,235.66

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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.