Home / 7,591.71-11,389.07-2,661.51

Finding the Fourth Proportional to 7,591.71, 11,389.07 and 2,661.51

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Solution

The fourth proportional to 7,591.71, 11,389.07 and 2,661.51 is: 3,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,591.71 : 11,389.07 = 2,661.51 : x
  2. Step 2: Convert to fraction form
    7,591.71/11,389.07 = 2,661.51/x
  3. Step 3: Cross multiply
    7,591.71x = 11,389.07 × 2,661.51
  4. Step 4: Simplify right side
    7,591.71x = 30,312,053.44
  5. Step 5: Solve for x
    x = 30,312,053.44/7,591.71
  6. Step 6: Final answer
    x = 3,992.79

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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.