Home / 2,790.49-4,184.24-1,228.68

Finding the Fourth Proportional to 2,790.49, 4,184.24 and 1,228.68

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Solution

The fourth proportional to 2,790.49, 4,184.24 and 1,228.68 is: 1,842.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.49 : 4,184.24 = 1,228.68 : x
  2. Step 2: Convert to fraction form
    2,790.49/4,184.24 = 1,228.68/x
  3. Step 3: Cross multiply
    2,790.49x = 4,184.24 × 1,228.68
  4. Step 4: Simplify right side
    2,790.49x = 5,141,092.00
  5. Step 5: Solve for x
    x = 5,141,092.00/2,790.49
  6. Step 6: Final answer
    x = 1,842.37

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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.