Home / 7,238.36-9,979.66-5,743.71

Finding the Fourth Proportional to 7,238.36, 9,979.66 and 5,743.71

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Solution

The fourth proportional to 7,238.36, 9,979.66 and 5,743.71 is: 7,918.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.36 : 9,979.66 = 5,743.71 : x
  2. Step 2: Convert to fraction form
    7,238.36/9,979.66 = 5,743.71/x
  3. Step 3: Cross multiply
    7,238.36x = 9,979.66 × 5,743.71
  4. Step 4: Simplify right side
    7,238.36x = 57,320,272.94
  5. Step 5: Solve for x
    x = 57,320,272.94/7,238.36
  6. Step 6: Final answer
    x = 7,918.96

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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.