Home / 2,619.12-3,612.97-2,028.63

Finding the Fourth Proportional to 2,619.12, 3,612.97 and 2,028.63

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Solution

The fourth proportional to 2,619.12, 3,612.97 and 2,028.63 is: 2,798.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.12 : 3,612.97 = 2,028.63 : x
  2. Step 2: Convert to fraction form
    2,619.12/3,612.97 = 2,028.63/x
  3. Step 3: Cross multiply
    2,619.12x = 3,612.97 × 2,028.63
  4. Step 4: Simplify right side
    2,619.12x = 7,329,379.33
  5. Step 5: Solve for x
    x = 7,329,379.33/2,619.12
  6. Step 6: Final answer
    x = 2,798.41

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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.