Home / 2,790.25-4,182.99-1,145.77

Finding the Fourth Proportional to 2,790.25, 4,182.99 and 1,145.77

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Solution

The fourth proportional to 2,790.25, 4,182.99 and 1,145.77 is: 1,717.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.25 : 4,182.99 = 1,145.77 : x
  2. Step 2: Convert to fraction form
    2,790.25/4,182.99 = 1,145.77/x
  3. Step 3: Cross multiply
    2,790.25x = 4,182.99 × 1,145.77
  4. Step 4: Simplify right side
    2,790.25x = 4,792,744.45
  5. Step 5: Solve for x
    x = 4,792,744.45/2,790.25
  6. Step 6: Final answer
    x = 1,717.68

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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.