Home / 3,432.40-4,736.94-2,105.75

Finding the Fourth Proportional to 3,432.40, 4,736.94 and 2,105.75

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Solution

The fourth proportional to 3,432.40, 4,736.94 and 2,105.75 is: 2,906.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.40 : 4,736.94 = 2,105.75 : x
  2. Step 2: Convert to fraction form
    3,432.40/4,736.94 = 2,105.75/x
  3. Step 3: Cross multiply
    3,432.40x = 4,736.94 × 2,105.75
  4. Step 4: Simplify right side
    3,432.40x = 9,974,811.41
  5. Step 5: Solve for x
    x = 9,974,811.41/3,432.40
  6. Step 6: Final answer
    x = 2,906.07

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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.