Home / 2,554.11-3,826.44-1,320.21

Finding the Fourth Proportional to 2,554.11, 3,826.44 and 1,320.21

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Solution

The fourth proportional to 2,554.11, 3,826.44 and 1,320.21 is: 1,977.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.11 : 3,826.44 = 1,320.21 : x
  2. Step 2: Convert to fraction form
    2,554.11/3,826.44 = 1,320.21/x
  3. Step 3: Cross multiply
    2,554.11x = 3,826.44 × 1,320.21
  4. Step 4: Simplify right side
    2,554.11x = 5,051,704.35
  5. Step 5: Solve for x
    x = 5,051,704.35/2,554.11
  6. Step 6: Final answer
    x = 1,977.87

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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.