Home / 6,199.21-9,290.38-3,421.75

Finding the Fourth Proportional to 6,199.21, 9,290.38 and 3,421.75

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Solution

The fourth proportional to 6,199.21, 9,290.38 and 3,421.75 is: 5,127.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,199.21 : 9,290.38 = 3,421.75 : x
  2. Step 2: Convert to fraction form
    6,199.21/9,290.38 = 3,421.75/x
  3. Step 3: Cross multiply
    6,199.21x = 9,290.38 × 3,421.75
  4. Step 4: Simplify right side
    6,199.21x = 31,789,357.77
  5. Step 5: Solve for x
    x = 31,789,357.77/6,199.21
  6. Step 6: Final answer
    x = 5,127.97

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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.