Home / 7,044.05-9,721.09-3,900.23

Finding the Fourth Proportional to 7,044.05, 9,721.09 and 3,900.23

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Solution

The fourth proportional to 7,044.05, 9,721.09 and 3,900.23 is: 5,382.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,044.05 : 9,721.09 = 3,900.23 : x
  2. Step 2: Convert to fraction form
    7,044.05/9,721.09 = 3,900.23/x
  3. Step 3: Cross multiply
    7,044.05x = 9,721.09 × 3,900.23
  4. Step 4: Simplify right side
    7,044.05x = 37,914,534.26
  5. Step 5: Solve for x
    x = 37,914,534.26/7,044.05
  6. Step 6: Final answer
    x = 5,382.49

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1.5x scale

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.