Home / 2,138.94-3,200.85-1,477.71

Finding the Fourth Proportional to 2,138.94, 3,200.85 and 1,477.71

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Solution

The fourth proportional to 2,138.94, 3,200.85 and 1,477.71 is: 2,211.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.94 : 3,200.85 = 1,477.71 : x
  2. Step 2: Convert to fraction form
    2,138.94/3,200.85 = 1,477.71/x
  3. Step 3: Cross multiply
    2,138.94x = 3,200.85 × 1,477.71
  4. Step 4: Simplify right side
    2,138.94x = 4,729,928.05
  5. Step 5: Solve for x
    x = 4,729,928.05/2,138.94
  6. Step 6: Final answer
    x = 2,211.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.