Home / 7,136.97-10,698.09-2,979.39

Finding the Fourth Proportional to 7,136.97, 10,698.09 and 2,979.39

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Solution

The fourth proportional to 7,136.97, 10,698.09 and 2,979.39 is: 4,466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.97 : 10,698.09 = 2,979.39 : x
  2. Step 2: Convert to fraction form
    7,136.97/10,698.09 = 2,979.39/x
  3. Step 3: Cross multiply
    7,136.97x = 10,698.09 × 2,979.39
  4. Step 4: Simplify right side
    7,136.97x = 31,873,782.37
  5. Step 5: Solve for x
    x = 31,873,782.37/7,136.97
  6. Step 6: Final answer
    x = 4,466.01

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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.