Home / 2,738.30-4,107.24-1,640.21

Finding the Fourth Proportional to 2,738.30, 4,107.24 and 1,640.21

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Solution

The fourth proportional to 2,738.30, 4,107.24 and 1,640.21 is: 2,460.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.30 : 4,107.24 = 1,640.21 : x
  2. Step 2: Convert to fraction form
    2,738.30/4,107.24 = 1,640.21/x
  3. Step 3: Cross multiply
    2,738.30x = 4,107.24 × 1,640.21
  4. Step 4: Simplify right side
    2,738.30x = 6,736,715.58
  5. Step 5: Solve for x
    x = 6,736,715.58/2,738.30
  6. Step 6: Final answer
    x = 2,460.19

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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.