Home / 2,029.25-2,800.38-1,190.45

Finding the Fourth Proportional to 2,029.25, 2,800.38 and 1,190.45

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Solution

The fourth proportional to 2,029.25, 2,800.38 and 1,190.45 is: 1,642.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.25 : 2,800.38 = 1,190.45 : x
  2. Step 2: Convert to fraction form
    2,029.25/2,800.38 = 1,190.45/x
  3. Step 3: Cross multiply
    2,029.25x = 2,800.38 × 1,190.45
  4. Step 4: Simplify right side
    2,029.25x = 3,333,705.85
  5. Step 5: Solve for x
    x = 3,333,705.85/2,029.25
  6. Step 6: Final answer
    x = 1,642.83

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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.