Home / 7,859.57-11,787.53-2,311.42

Finding the Fourth Proportional to 7,859.57, 11,787.53 and 2,311.42

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Solution

The fourth proportional to 7,859.57, 11,787.53 and 2,311.42 is: 3,466.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.57 : 11,787.53 = 2,311.42 : x
  2. Step 2: Convert to fraction form
    7,859.57/11,787.53 = 2,311.42/x
  3. Step 3: Cross multiply
    7,859.57x = 11,787.53 × 2,311.42
  4. Step 4: Simplify right side
    7,859.57x = 27,245,913.67
  5. Step 5: Solve for x
    x = 27,245,913.67/7,859.57
  6. Step 6: Final answer
    x = 3,466.59

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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.