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Finding the Fourth Proportional to 2,999.44, 4,492.96 and 2,780.72

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Solution

The fourth proportional to 2,999.44, 4,492.96 and 2,780.72 is: 4,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.44 : 4,492.96 = 2,780.72 : x
  2. Step 2: Convert to fraction form
    2,999.44/4,492.96 = 2,780.72/x
  3. Step 3: Cross multiply
    2,999.44x = 4,492.96 × 2,780.72
  4. Step 4: Simplify right side
    2,999.44x = 12,493,663.73
  5. Step 5: Solve for x
    x = 12,493,663.73/2,999.44
  6. Step 6: Final answer
    x = 4,165.33

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1.5x scale

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.