Home / 3,211.44-4,431.72-1,814.16

Finding the Fourth Proportional to 3,211.44, 4,431.72 and 1,814.16

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Solution

The fourth proportional to 3,211.44, 4,431.72 and 1,814.16 is: 2,503.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.44 : 4,431.72 = 1,814.16 : x
  2. Step 2: Convert to fraction form
    3,211.44/4,431.72 = 1,814.16/x
  3. Step 3: Cross multiply
    3,211.44x = 4,431.72 × 1,814.16
  4. Step 4: Simplify right side
    3,211.44x = 8,039,849.16
  5. Step 5: Solve for x
    x = 8,039,849.16/3,211.44
  6. Step 6: Final answer
    x = 2,503.50

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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.