Home / 2,028.88-2,798.94-1,189.63

Finding the Fourth Proportional to 2,028.88, 2,798.94 and 1,189.63

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Solution

The fourth proportional to 2,028.88, 2,798.94 and 1,189.63 is: 1,641.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.88 : 2,798.94 = 1,189.63 : x
  2. Step 2: Convert to fraction form
    2,028.88/2,798.94 = 1,189.63/x
  3. Step 3: Cross multiply
    2,028.88x = 2,798.94 × 1,189.63
  4. Step 4: Simplify right side
    2,028.88x = 3,329,702.99
  5. Step 5: Solve for x
    x = 3,329,702.99/2,028.88
  6. Step 6: Final answer
    x = 1,641.15

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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.