Home / 3,176.46-4,383.72-1,779.12

Finding the Fourth Proportional to 3,176.46, 4,383.72 and 1,779.12

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Solution

The fourth proportional to 3,176.46, 4,383.72 and 1,779.12 is: 2,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.46 : 4,383.72 = 1,779.12 : x
  2. Step 2: Convert to fraction form
    3,176.46/4,383.72 = 1,779.12/x
  3. Step 3: Cross multiply
    3,176.46x = 4,383.72 × 1,779.12
  4. Step 4: Simplify right side
    3,176.46x = 7,799,163.93
  5. Step 5: Solve for x
    x = 7,799,163.93/3,176.46
  6. Step 6: Final answer
    x = 2,455.30

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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.