Home / 2,286.93-3,155.94-1,292.21

Finding the Fourth Proportional to 2,286.93, 3,155.94 and 1,292.21

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Solution

The fourth proportional to 2,286.93, 3,155.94 and 1,292.21 is: 1,783.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.93 : 3,155.94 = 1,292.21 : x
  2. Step 2: Convert to fraction form
    2,286.93/3,155.94 = 1,292.21/x
  3. Step 3: Cross multiply
    2,286.93x = 3,155.94 × 1,292.21
  4. Step 4: Simplify right side
    2,286.93x = 4,078,137.23
  5. Step 5: Solve for x
    x = 4,078,137.23/2,286.93
  6. Step 6: Final answer
    x = 1,783.24

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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.