Home / 7,971.10-11,955.73-2,127.25

Finding the Fourth Proportional to 7,971.10, 11,955.73 and 2,127.25

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Solution

The fourth proportional to 7,971.10, 11,955.73 and 2,127.25 is: 3,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.10 : 11,955.73 = 2,127.25 : x
  2. Step 2: Convert to fraction form
    7,971.10/11,955.73 = 2,127.25/x
  3. Step 3: Cross multiply
    7,971.10x = 11,955.73 × 2,127.25
  4. Step 4: Simplify right side
    7,971.10x = 25,432,826.64
  5. Step 5: Solve for x
    x = 25,432,826.64/7,971.10
  6. Step 6: Final answer
    x = 3,190.63

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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.