Home / 3,081.89-4,622.33-890.03

Finding the Fourth Proportional to 3,081.89, 4,622.33 and 890.03

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Solution

The fourth proportional to 3,081.89, 4,622.33 and 890.03 is: 1,334.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.89 : 4,622.33 = 890.03 : x
  2. Step 2: Convert to fraction form
    3,081.89/4,622.33 = 890.03/x
  3. Step 3: Cross multiply
    3,081.89x = 4,622.33 × 890.03
  4. Step 4: Simplify right side
    3,081.89x = 4,114,026.15
  5. Step 5: Solve for x
    x = 4,114,026.15/3,081.89
  6. Step 6: Final answer
    x = 1,334.90

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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.