Home / 7,561.69-11,342.49-1,939.33

Finding the Fourth Proportional to 7,561.69, 11,342.49 and 1,939.33

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Solution

The fourth proportional to 7,561.69, 11,342.49 and 1,939.33 is: 2,908.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,561.69 : 11,342.49 = 1,939.33 : x
  2. Step 2: Convert to fraction form
    7,561.69/11,342.49 = 1,939.33/x
  3. Step 3: Cross multiply
    7,561.69x = 11,342.49 × 1,939.33
  4. Step 4: Simplify right side
    7,561.69x = 21,996,829.59
  5. Step 5: Solve for x
    x = 21,996,829.59/7,561.69
  6. Step 6: Final answer
    x = 2,908.99

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1.5x scale

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.