Home / 7,961.93-11,938.32-3,285.16

Finding the Fourth Proportional to 7,961.93, 11,938.32 and 3,285.16

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Solution

The fourth proportional to 7,961.93, 11,938.32 and 3,285.16 is: 4,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.93 : 11,938.32 = 3,285.16 : x
  2. Step 2: Convert to fraction form
    7,961.93/11,938.32 = 3,285.16/x
  3. Step 3: Cross multiply
    7,961.93x = 11,938.32 × 3,285.16
  4. Step 4: Simplify right side
    7,961.93x = 39,219,261.49
  5. Step 5: Solve for x
    x = 39,219,261.49/7,961.93
  6. Step 6: Final answer
    x = 4,925.85

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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.