Home / 2,311.62-3,191.45-1,504.85

Finding the Fourth Proportional to 2,311.62, 3,191.45 and 1,504.85

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Solution

The fourth proportional to 2,311.62, 3,191.45 and 1,504.85 is: 2,077.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.62 : 3,191.45 = 1,504.85 : x
  2. Step 2: Convert to fraction form
    2,311.62/3,191.45 = 1,504.85/x
  3. Step 3: Cross multiply
    2,311.62x = 3,191.45 × 1,504.85
  4. Step 4: Simplify right side
    2,311.62x = 4,802,653.53
  5. Step 5: Solve for x
    x = 4,802,653.53/2,311.62
  6. Step 6: Final answer
    x = 2,077.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.