Home / 2,074.72-2,863.26-1,190.80

Finding the Fourth Proportional to 2,074.72, 2,863.26 and 1,190.80

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Solution

The fourth proportional to 2,074.72, 2,863.26 and 1,190.80 is: 1,643.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.72 : 2,863.26 = 1,190.80 : x
  2. Step 2: Convert to fraction form
    2,074.72/2,863.26 = 1,190.80/x
  3. Step 3: Cross multiply
    2,074.72x = 2,863.26 × 1,190.80
  4. Step 4: Simplify right side
    2,074.72x = 3,409,570.01
  5. Step 5: Solve for x
    x = 3,409,570.01/2,074.72
  6. Step 6: Final answer
    x = 1,643.39

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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.