Home / 2,816.92-4,228.01-1,431.24

Finding the Fourth Proportional to 2,816.92, 4,228.01 and 1,431.24

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Solution

The fourth proportional to 2,816.92, 4,228.01 and 1,431.24 is: 2,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.92 : 4,228.01 = 1,431.24 : x
  2. Step 2: Convert to fraction form
    2,816.92/4,228.01 = 1,431.24/x
  3. Step 3: Cross multiply
    2,816.92x = 4,228.01 × 1,431.24
  4. Step 4: Simplify right side
    2,816.92x = 6,051,289.88
  5. Step 5: Solve for x
    x = 6,051,289.88/2,816.92
  6. Step 6: Final answer
    x = 2,148.20

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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.