Home / 2,784.42-3,841.67-1,790.85

Finding the Fourth Proportional to 2,784.42, 3,841.67 and 1,790.85

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Solution

The fourth proportional to 2,784.42, 3,841.67 and 1,790.85 is: 2,470.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.42 : 3,841.67 = 1,790.85 : x
  2. Step 2: Convert to fraction form
    2,784.42/3,841.67 = 1,790.85/x
  3. Step 3: Cross multiply
    2,784.42x = 3,841.67 × 1,790.85
  4. Step 4: Simplify right side
    2,784.42x = 6,879,845.77
  5. Step 5: Solve for x
    x = 6,879,845.77/2,784.42
  6. Step 6: Final answer
    x = 2,470.84

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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.