Home / 1,863.15-2,795.53-1,286.97

Finding the Fourth Proportional to 1,863.15, 2,795.53 and 1,286.97

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Solution

The fourth proportional to 1,863.15, 2,795.53 and 1,286.97 is: 1,931.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.15 : 2,795.53 = 1,286.97 : x
  2. Step 2: Convert to fraction form
    1,863.15/2,795.53 = 1,286.97/x
  3. Step 3: Cross multiply
    1,863.15x = 2,795.53 × 1,286.97
  4. Step 4: Simplify right side
    1,863.15x = 3,597,763.24
  5. Step 5: Solve for x
    x = 3,597,763.24/1,863.15
  6. Step 6: Final answer
    x = 1,931.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.