Home / 2,390.18-3,289.46-2,022

Finding the Fourth Proportional to 2,390.18, 3,289.46 and 2,022

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Solution

The fourth proportional to 2,390.18, 3,289.46 and 2,022 is: 2,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.18 : 3,289.46 = 2,022 : x
  2. Step 2: Convert to fraction form
    2,390.18/3,289.46 = 2,022/x
  3. Step 3: Cross multiply
    2,390.18x = 3,289.46 × 2,022
  4. Step 4: Simplify right side
    2,390.18x = 6,651,288.12
  5. Step 5: Solve for x
    x = 6,651,288.12/2,390.18
  6. Step 6: Final answer
    x = 2,782.76

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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.