Home / 2,771.19-4,156.58-1,105.26

Finding the Fourth Proportional to 2,771.19, 4,156.58 and 1,105.26

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Solution

The fourth proportional to 2,771.19, 4,156.58 and 1,105.26 is: 1,657.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.19 : 4,156.58 = 1,105.26 : x
  2. Step 2: Convert to fraction form
    2,771.19/4,156.58 = 1,105.26/x
  3. Step 3: Cross multiply
    2,771.19x = 4,156.58 × 1,105.26
  4. Step 4: Simplify right side
    2,771.19x = 4,594,096.08
  5. Step 5: Solve for x
    x = 4,594,096.08/2,771.19
  6. Step 6: Final answer
    x = 1,657.81

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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.