Home / 3,176.63-4,383.77-1,779.38

Finding the Fourth Proportional to 3,176.63, 4,383.77 and 1,779.38

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Solution

The fourth proportional to 3,176.63, 4,383.77 and 1,779.38 is: 2,455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.63 : 4,383.77 = 1,779.38 : x
  2. Step 2: Convert to fraction form
    3,176.63/4,383.77 = 1,779.38/x
  3. Step 3: Cross multiply
    3,176.63x = 4,383.77 × 1,779.38
  4. Step 4: Simplify right side
    3,176.63x = 7,800,361.85
  5. Step 5: Solve for x
    x = 7,800,361.85/3,176.63
  6. Step 6: Final answer
    x = 2,455.55

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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.