Home / 2,169.07-2,993.37-1,284.36

Finding the Fourth Proportional to 2,169.07, 2,993.37 and 1,284.36

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Solution

The fourth proportional to 2,169.07, 2,993.37 and 1,284.36 is: 1,772.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.07 : 2,993.37 = 1,284.36 : x
  2. Step 2: Convert to fraction form
    2,169.07/2,993.37 = 1,284.36/x
  3. Step 3: Cross multiply
    2,169.07x = 2,993.37 × 1,284.36
  4. Step 4: Simplify right side
    2,169.07x = 3,844,559.88
  5. Step 5: Solve for x
    x = 3,844,559.88/2,169.07
  6. Step 6: Final answer
    x = 1,772.45

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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.