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Finding the Fourth Proportional to 7,696.89, 10,621.31 and 4,339.71

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Solution

The fourth proportional to 7,696.89, 10,621.31 and 4,339.71 is: 5,988.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,696.89 : 10,621.31 = 4,339.71 : x
  2. Step 2: Convert to fraction form
    7,696.89/10,621.31 = 4,339.71/x
  3. Step 3: Cross multiply
    7,696.89x = 10,621.31 × 4,339.71
  4. Step 4: Simplify right side
    7,696.89x = 46,093,383.52
  5. Step 5: Solve for x
    x = 46,093,383.52/7,696.89
  6. Step 6: Final answer
    x = 5,988.57

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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.