Home / 7,977.54-11,971.30-3,047.60

Finding the Fourth Proportional to 7,977.54, 11,971.30 and 3,047.60

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Solution

The fourth proportional to 7,977.54, 11,971.30 and 3,047.60 is: 4,573.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.54 : 11,971.30 = 3,047.60 : x
  2. Step 2: Convert to fraction form
    7,977.54/11,971.30 = 3,047.60/x
  3. Step 3: Cross multiply
    7,977.54x = 11,971.30 × 3,047.60
  4. Step 4: Simplify right side
    7,977.54x = 36,483,733.88
  5. Step 5: Solve for x
    x = 36,483,733.88/7,977.54
  6. Step 6: Final answer
    x = 4,573.31

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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.