Home / 3,038.96-4,211.72-2,992.88

Finding the Fourth Proportional to 3,038.96, 4,211.72 and 2,992.88

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Solution

The fourth proportional to 3,038.96, 4,211.72 and 2,992.88 is: 4,147.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.96 : 4,211.72 = 2,992.88 : x
  2. Step 2: Convert to fraction form
    3,038.96/4,211.72 = 2,992.88/x
  3. Step 3: Cross multiply
    3,038.96x = 4,211.72 × 2,992.88
  4. Step 4: Simplify right side
    3,038.96x = 12,605,172.55
  5. Step 5: Solve for x
    x = 12,605,172.55/3,038.96
  6. Step 6: Final answer
    x = 4,147.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.