Home / 2,773.70-4,158.39-1,386.34

Finding the Fourth Proportional to 2,773.70, 4,158.39 and 1,386.34

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Solution

The fourth proportional to 2,773.70, 4,158.39 and 1,386.34 is: 2,078.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.70 : 4,158.39 = 1,386.34 : x
  2. Step 2: Convert to fraction form
    2,773.70/4,158.39 = 1,386.34/x
  3. Step 3: Cross multiply
    2,773.70x = 4,158.39 × 1,386.34
  4. Step 4: Simplify right side
    2,773.70x = 5,764,942.39
  5. Step 5: Solve for x
    x = 5,764,942.39/2,773.70
  6. Step 6: Final answer
    x = 2,078.43

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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.