Home / 5,438.37-8,155.83-2,318.34

Finding the Fourth Proportional to 5,438.37, 8,155.83 and 2,318.34

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Solution

The fourth proportional to 5,438.37, 8,155.83 and 2,318.34 is: 3,476.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.37 : 8,155.83 = 2,318.34 : x
  2. Step 2: Convert to fraction form
    5,438.37/8,155.83 = 2,318.34/x
  3. Step 3: Cross multiply
    5,438.37x = 8,155.83 × 2,318.34
  4. Step 4: Simplify right side
    5,438.37x = 18,907,986.92
  5. Step 5: Solve for x
    x = 18,907,986.92/5,438.37
  6. Step 6: Final answer
    x = 3,476.77

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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.