Home / 1,450.18-2,000.94-890.74

Finding the Fourth Proportional to 1,450.18, 2,000.94 and 890.74

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Solution

The fourth proportional to 1,450.18, 2,000.94 and 890.74 is: 1,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.18 : 2,000.94 = 890.74 : x
  2. Step 2: Convert to fraction form
    1,450.18/2,000.94 = 890.74/x
  3. Step 3: Cross multiply
    1,450.18x = 2,000.94 × 890.74
  4. Step 4: Simplify right side
    1,450.18x = 1,782,317.30
  5. Step 5: Solve for x
    x = 1,782,317.30/1,450.18
  6. Step 6: Final answer
    x = 1,229.03

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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.