Home / 7,881.29-11,821.88-2,334.66

Finding the Fourth Proportional to 7,881.29, 11,821.88 and 2,334.66

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Solution

The fourth proportional to 7,881.29, 11,821.88 and 2,334.66 is: 3,501.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.29 : 11,821.88 = 2,334.66 : x
  2. Step 2: Convert to fraction form
    7,881.29/11,821.88 = 2,334.66/x
  3. Step 3: Cross multiply
    7,881.29x = 11,821.88 × 2,334.66
  4. Step 4: Simplify right side
    7,881.29x = 27,600,070.36
  5. Step 5: Solve for x
    x = 27,600,070.36/7,881.29
  6. Step 6: Final answer
    x = 3,501.97

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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.