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Finding the Fourth Proportional to 2,798.99, 3,863.33 and 1,620.74

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Solution

The fourth proportional to 2,798.99, 3,863.33 and 1,620.74 is: 2,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.99 : 3,863.33 = 1,620.74 : x
  2. Step 2: Convert to fraction form
    2,798.99/3,863.33 = 1,620.74/x
  3. Step 3: Cross multiply
    2,798.99x = 3,863.33 × 1,620.74
  4. Step 4: Simplify right side
    2,798.99x = 6,261,426.04
  5. Step 5: Solve for x
    x = 6,261,426.04/2,798.99
  6. Step 6: Final answer
    x = 2,237.03

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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.