Home / 2,154.37-3,228.81-1,230.43

Finding the Fourth Proportional to 2,154.37, 3,228.81 and 1,230.43

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Solution

The fourth proportional to 2,154.37, 3,228.81 and 1,230.43 is: 1,844.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.37 : 3,228.81 = 1,230.43 : x
  2. Step 2: Convert to fraction form
    2,154.37/3,228.81 = 1,230.43/x
  3. Step 3: Cross multiply
    2,154.37x = 3,228.81 × 1,230.43
  4. Step 4: Simplify right side
    2,154.37x = 3,972,824.69
  5. Step 5: Solve for x
    x = 3,972,824.69/2,154.37
  6. Step 6: Final answer
    x = 1,844.08

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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.