Home / 1,450.26-2,000.60-890.85

Finding the Fourth Proportional to 1,450.26, 2,000.60 and 890.85

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Solution

The fourth proportional to 1,450.26, 2,000.60 and 890.85 is: 1,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.26 : 2,000.60 = 890.85 : x
  2. Step 2: Convert to fraction form
    1,450.26/2,000.60 = 890.85/x
  3. Step 3: Cross multiply
    1,450.26x = 2,000.60 × 890.85
  4. Step 4: Simplify right side
    1,450.26x = 1,782,230.06
  5. Step 5: Solve for x
    x = 1,782,230.06/1,450.26
  6. Step 6: Final answer
    x = 1,228.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.