Home / 3,212.98-4,432.20-1,954.42

Finding the Fourth Proportional to 3,212.98, 4,432.20 and 1,954.42

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Solution

The fourth proportional to 3,212.98, 4,432.20 and 1,954.42 is: 2,696.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.98 : 4,432.20 = 1,954.42 : x
  2. Step 2: Convert to fraction form
    3,212.98/4,432.20 = 1,954.42/x
  3. Step 3: Cross multiply
    3,212.98x = 4,432.20 × 1,954.42
  4. Step 4: Simplify right side
    3,212.98x = 8,662,361.91
  5. Step 5: Solve for x
    x = 8,662,361.91/3,212.98
  6. Step 6: Final answer
    x = 2,696.05

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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.