Home / 2,148.87-3,223.31-1,108.23

Finding the Fourth Proportional to 2,148.87, 3,223.31 and 1,108.23

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Solution

The fourth proportional to 2,148.87, 3,223.31 and 1,108.23 is: 1,662.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.87 : 3,223.31 = 1,108.23 : x
  2. Step 2: Convert to fraction form
    2,148.87/3,223.31 = 1,108.23/x
  3. Step 3: Cross multiply
    2,148.87x = 3,223.31 × 1,108.23
  4. Step 4: Simplify right side
    2,148.87x = 3,572,163.30
  5. Step 5: Solve for x
    x = 3,572,163.30/2,148.87
  6. Step 6: Final answer
    x = 1,662.35

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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.