Home / 2,286.69-3,155.93-1,292.28

Finding the Fourth Proportional to 2,286.69, 3,155.93 and 1,292.28

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Solution

The fourth proportional to 2,286.69, 3,155.93 and 1,292.28 is: 1,783.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.69 : 3,155.93 = 1,292.28 : x
  2. Step 2: Convert to fraction form
    2,286.69/3,155.93 = 1,292.28/x
  3. Step 3: Cross multiply
    2,286.69x = 3,155.93 × 1,292.28
  4. Step 4: Simplify right side
    2,286.69x = 4,078,345.22
  5. Step 5: Solve for x
    x = 4,078,345.22/2,286.69
  6. Step 6: Final answer
    x = 1,783.51

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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.