Home / 6,172.21-8,515.96-3,518.65

Finding the Fourth Proportional to 6,172.21, 8,515.96 and 3,518.65

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Solution

The fourth proportional to 6,172.21, 8,515.96 and 3,518.65 is: 4,854.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.21 : 8,515.96 = 3,518.65 : x
  2. Step 2: Convert to fraction form
    6,172.21/8,515.96 = 3,518.65/x
  3. Step 3: Cross multiply
    6,172.21x = 8,515.96 × 3,518.65
  4. Step 4: Simplify right side
    6,172.21x = 29,964,682.65
  5. Step 5: Solve for x
    x = 29,964,682.65/6,172.21
  6. Step 6: Final answer
    x = 4,854.77

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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.