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Finding the Fourth Proportional to 1,450.85, 2,002.22 and 853.39

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Solution

The fourth proportional to 1,450.85, 2,002.22 and 853.39 is: 1,177.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.85 : 2,002.22 = 853.39 : x
  2. Step 2: Convert to fraction form
    1,450.85/2,002.22 = 853.39/x
  3. Step 3: Cross multiply
    1,450.85x = 2,002.22 × 853.39
  4. Step 4: Simplify right side
    1,450.85x = 1,708,673.15
  5. Step 5: Solve for x
    x = 1,708,673.15/1,450.85
  6. Step 6: Final answer
    x = 1,177.70

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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.