Home / 6,280.72-9,421.97-2,121.93

Finding the Fourth Proportional to 6,280.72, 9,421.97 and 2,121.93

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Solution

The fourth proportional to 6,280.72, 9,421.97 and 2,121.93 is: 3,183.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.72 : 9,421.97 = 2,121.93 : x
  2. Step 2: Convert to fraction form
    6,280.72/9,421.97 = 2,121.93/x
  3. Step 3: Cross multiply
    6,280.72x = 9,421.97 × 2,121.93
  4. Step 4: Simplify right side
    6,280.72x = 19,992,750.19
  5. Step 5: Solve for x
    x = 19,992,750.19/6,280.72
  6. Step 6: Final answer
    x = 3,183.20

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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.