Home / 3,450.20-4,759.31-2,123.62

Finding the Fourth Proportional to 3,450.20, 4,759.31 and 2,123.62

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Solution

The fourth proportional to 3,450.20, 4,759.31 and 2,123.62 is: 2,929.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.20 : 4,759.31 = 2,123.62 : x
  2. Step 2: Convert to fraction form
    3,450.20/4,759.31 = 2,123.62/x
  3. Step 3: Cross multiply
    3,450.20x = 4,759.31 × 2,123.62
  4. Step 4: Simplify right side
    3,450.20x = 10,106,947.37
  5. Step 5: Solve for x
    x = 10,106,947.37/3,450.20
  6. Step 6: Final answer
    x = 2,929.38

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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.