Home / 2,773.26-4,156.42-1,386.98

Finding the Fourth Proportional to 2,773.26, 4,156.42 and 1,386.98

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Solution

The fourth proportional to 2,773.26, 4,156.42 and 1,386.98 is: 2,078.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.26 : 4,156.42 = 1,386.98 : x
  2. Step 2: Convert to fraction form
    2,773.26/4,156.42 = 1,386.98/x
  3. Step 3: Cross multiply
    2,773.26x = 4,156.42 × 1,386.98
  4. Step 4: Simplify right side
    2,773.26x = 5,764,871.41
  5. Step 5: Solve for x
    x = 5,764,871.41/2,773.26
  6. Step 6: Final answer
    x = 2,078.73

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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.