Home / 1,817.25-2,711.83-1,620.68

Finding the Fourth Proportional to 1,817.25, 2,711.83 and 1,620.68

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Solution

The fourth proportional to 1,817.25, 2,711.83 and 1,620.68 is: 2,418.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.25 : 2,711.83 = 1,620.68 : x
  2. Step 2: Convert to fraction form
    1,817.25/2,711.83 = 1,620.68/x
  3. Step 3: Cross multiply
    1,817.25x = 2,711.83 × 1,620.68
  4. Step 4: Simplify right side
    1,817.25x = 4,394,994.07
  5. Step 5: Solve for x
    x = 4,394,994.07/1,817.25
  6. Step 6: Final answer
    x = 2,418.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.