Home / 2,384.37-3,289.07-1,912.79

Finding the Fourth Proportional to 2,384.37, 3,289.07 and 1,912.79

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Solution

The fourth proportional to 2,384.37, 3,289.07 and 1,912.79 is: 2,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.37 : 3,289.07 = 1,912.79 : x
  2. Step 2: Convert to fraction form
    2,384.37/3,289.07 = 1,912.79/x
  3. Step 3: Cross multiply
    2,384.37x = 3,289.07 × 1,912.79
  4. Step 4: Simplify right side
    2,384.37x = 6,291,313.21
  5. Step 5: Solve for x
    x = 6,291,313.21/2,384.37
  6. Step 6: Final answer
    x = 2,638.56

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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.