Home / 3,243.15-4,475.39-1,984.41

Finding the Fourth Proportional to 3,243.15, 4,475.39 and 1,984.41

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Solution

The fourth proportional to 3,243.15, 4,475.39 and 1,984.41 is: 2,738.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.15 : 4,475.39 = 1,984.41 : x
  2. Step 2: Convert to fraction form
    3,243.15/4,475.39 = 1,984.41/x
  3. Step 3: Cross multiply
    3,243.15x = 4,475.39 × 1,984.41
  4. Step 4: Simplify right side
    3,243.15x = 8,880,998.75
  5. Step 5: Solve for x
    x = 8,880,998.75/3,243.15
  6. Step 6: Final answer
    x = 2,738.39

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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.