Home / 2,286.60-3,155.48-1,291.85

Finding the Fourth Proportional to 2,286.60, 3,155.48 and 1,291.85

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Solution

The fourth proportional to 2,286.60, 3,155.48 and 1,291.85 is: 1,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.60 : 3,155.48 = 1,291.85 : x
  2. Step 2: Convert to fraction form
    2,286.60/3,155.48 = 1,291.85/x
  3. Step 3: Cross multiply
    2,286.60x = 3,155.48 × 1,291.85
  4. Step 4: Simplify right side
    2,286.60x = 4,076,404.91
  5. Step 5: Solve for x
    x = 4,076,404.91/2,286.60
  6. Step 6: Final answer
    x = 1,782.73

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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.