Home / 3,121.06-4,676.10-2,630.62

Finding the Fourth Proportional to 3,121.06, 4,676.10 and 2,630.62

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Solution

The fourth proportional to 3,121.06, 4,676.10 and 2,630.62 is: 3,941.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.06 : 4,676.10 = 2,630.62 : x
  2. Step 2: Convert to fraction form
    3,121.06/4,676.10 = 2,630.62/x
  3. Step 3: Cross multiply
    3,121.06x = 4,676.10 × 2,630.62
  4. Step 4: Simplify right side
    3,121.06x = 12,301,042.18
  5. Step 5: Solve for x
    x = 12,301,042.18/3,121.06
  6. Step 6: Final answer
    x = 3,941.30

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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.