Home / 2,311.70-3,467.55-1,340.30

Finding the Fourth Proportional to 2,311.70, 3,467.55 and 1,340.30

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Solution

The fourth proportional to 2,311.70, 3,467.55 and 1,340.30 is: 2,010.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.70 : 3,467.55 = 1,340.30 : x
  2. Step 2: Convert to fraction form
    2,311.70/3,467.55 = 1,340.30/x
  3. Step 3: Cross multiply
    2,311.70x = 3,467.55 × 1,340.30
  4. Step 4: Simplify right side
    2,311.70x = 4,647,557.27
  5. Step 5: Solve for x
    x = 4,647,557.27/2,311.70
  6. Step 6: Final answer
    x = 2,010.45

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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.