Home / 2,074.81-2,863.19-1,143.25

Finding the Fourth Proportional to 2,074.81, 2,863.19 and 1,143.25

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Solution

The fourth proportional to 2,074.81, 2,863.19 and 1,143.25 is: 1,577.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.81 : 2,863.19 = 1,143.25 : x
  2. Step 2: Convert to fraction form
    2,074.81/2,863.19 = 1,143.25/x
  3. Step 3: Cross multiply
    2,074.81x = 2,863.19 × 1,143.25
  4. Step 4: Simplify right side
    2,074.81x = 3,273,336.25
  5. Step 5: Solve for x
    x = 3,273,336.25/2,074.81
  6. Step 6: Final answer
    x = 1,577.66

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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.