Home / 2,286.67-3,155.53-1,291.93

Finding the Fourth Proportional to 2,286.67, 3,155.53 and 1,291.93

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Solution

The fourth proportional to 2,286.67, 3,155.53 and 1,291.93 is: 1,782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.67 : 3,155.53 = 1,291.93 : x
  2. Step 2: Convert to fraction form
    2,286.67/3,155.53 = 1,291.93/x
  3. Step 3: Cross multiply
    2,286.67x = 3,155.53 × 1,291.93
  4. Step 4: Simplify right side
    2,286.67x = 4,076,723.87
  5. Step 5: Solve for x
    x = 4,076,723.87/2,286.67
  6. Step 6: Final answer
    x = 1,782.82

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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.