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Finding the Fourth Proportional to 4,492.63, 6,738.80 and 1,205.55

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Solution

The fourth proportional to 4,492.63, 6,738.80 and 1,205.55 is: 1,808.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,492.63 : 6,738.80 = 1,205.55 : x
  2. Step 2: Convert to fraction form
    4,492.63/6,738.80 = 1,205.55/x
  3. Step 3: Cross multiply
    4,492.63x = 6,738.80 × 1,205.55
  4. Step 4: Simplify right side
    4,492.63x = 8,123,960.34
  5. Step 5: Solve for x
    x = 8,123,960.34/4,492.63
  6. Step 6: Final answer
    x = 1,808.29

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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.