Home / 4,212.90-6,306.87-3,122.16

Finding the Fourth Proportional to 4,212.90, 6,306.87 and 3,122.16

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Solution

The fourth proportional to 4,212.90, 6,306.87 and 3,122.16 is: 4,673.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.90 : 6,306.87 = 3,122.16 : x
  2. Step 2: Convert to fraction form
    4,212.90/6,306.87 = 3,122.16/x
  3. Step 3: Cross multiply
    4,212.90x = 6,306.87 × 3,122.16
  4. Step 4: Simplify right side
    4,212.90x = 19,691,057.24
  5. Step 5: Solve for x
    x = 19,691,057.24/4,212.90
  6. Step 6: Final answer
    x = 4,673.99

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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.