Home / 3,211.75-4,432.58-1,814.59

Finding the Fourth Proportional to 3,211.75, 4,432.58 and 1,814.59

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Solution

The fourth proportional to 3,211.75, 4,432.58 and 1,814.59 is: 2,504.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.75 : 4,432.58 = 1,814.59 : x
  2. Step 2: Convert to fraction form
    3,211.75/4,432.58 = 1,814.59/x
  3. Step 3: Cross multiply
    3,211.75x = 4,432.58 × 1,814.59
  4. Step 4: Simplify right side
    3,211.75x = 8,043,315.34
  5. Step 5: Solve for x
    x = 8,043,315.34/3,211.75
  6. Step 6: Final answer
    x = 2,504.34

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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.