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Finding the Fourth Proportional to 1,604.80, 2,211.98 and 1,073.49

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Solution

The fourth proportional to 1,604.80, 2,211.98 and 1,073.49 is: 1,479.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604.80 : 2,211.98 = 1,073.49 : x
  2. Step 2: Convert to fraction form
    1,604.80/2,211.98 = 1,073.49/x
  3. Step 3: Cross multiply
    1,604.80x = 2,211.98 × 1,073.49
  4. Step 4: Simplify right side
    1,604.80x = 2,374,536.34
  5. Step 5: Solve for x
    x = 2,374,536.34/1,604.80
  6. Step 6: Final answer
    x = 1,479.65

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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.