Home / 2,145.57-3,219.30-1,050.99

Finding the Fourth Proportional to 2,145.57, 3,219.30 and 1,050.99

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Solution

The fourth proportional to 2,145.57, 3,219.30 and 1,050.99 is: 1,576.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.57 : 3,219.30 = 1,050.99 : x
  2. Step 2: Convert to fraction form
    2,145.57/3,219.30 = 1,050.99/x
  3. Step 3: Cross multiply
    2,145.57x = 3,219.30 × 1,050.99
  4. Step 4: Simplify right side
    2,145.57x = 3,383,452.11
  5. Step 5: Solve for x
    x = 3,383,452.11/2,145.57
  6. Step 6: Final answer
    x = 1,576.95

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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.