Home / 4,262.84-6,389.90-2,876.31

Finding the Fourth Proportional to 4,262.84, 6,389.90 and 2,876.31

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Solution

The fourth proportional to 4,262.84, 6,389.90 and 2,876.31 is: 4,311.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,262.84 : 6,389.90 = 2,876.31 : x
  2. Step 2: Convert to fraction form
    4,262.84/6,389.90 = 2,876.31/x
  3. Step 3: Cross multiply
    4,262.84x = 6,389.90 × 2,876.31
  4. Step 4: Simplify right side
    4,262.84x = 18,379,318.89
  5. Step 5: Solve for x
    x = 18,379,318.89/4,262.84
  6. Step 6: Final answer
    x = 4,311.52

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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.