Home / 7,129.98-10,696.79-2,968.60

Finding the Fourth Proportional to 7,129.98, 10,696.79 and 2,968.60

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Solution

The fourth proportional to 7,129.98, 10,696.79 and 2,968.60 is: 4,453.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.98 : 10,696.79 = 2,968.60 : x
  2. Step 2: Convert to fraction form
    7,129.98/10,696.79 = 2,968.60/x
  3. Step 3: Cross multiply
    7,129.98x = 10,696.79 × 2,968.60
  4. Step 4: Simplify right side
    7,129.98x = 31,754,490.79
  5. Step 5: Solve for x
    x = 31,754,490.79/7,129.98
  6. Step 6: Final answer
    x = 4,453.66

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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.