Home / 7,929.58-10,942.11-4,391.86

Finding the Fourth Proportional to 7,929.58, 10,942.11 and 4,391.86

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Solution

The fourth proportional to 7,929.58, 10,942.11 and 4,391.86 is: 6,060.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.58 : 10,942.11 = 4,391.86 : x
  2. Step 2: Convert to fraction form
    7,929.58/10,942.11 = 4,391.86/x
  3. Step 3: Cross multiply
    7,929.58x = 10,942.11 × 4,391.86
  4. Step 4: Simplify right side
    7,929.58x = 48,056,215.22
  5. Step 5: Solve for x
    x = 48,056,215.22/7,929.58
  6. Step 6: Final answer
    x = 6,060.37

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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.