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Finding the Fourth Proportional to 1,994.03, 2,748.21 and 1,764.89

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Solution

The fourth proportional to 1,994.03, 2,748.21 and 1,764.89 is: 2,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.03 : 2,748.21 = 1,764.89 : x
  2. Step 2: Convert to fraction form
    1,994.03/2,748.21 = 1,764.89/x
  3. Step 3: Cross multiply
    1,994.03x = 2,748.21 × 1,764.89
  4. Step 4: Simplify right side
    1,994.03x = 4,850,274.61
  5. Step 5: Solve for x
    x = 4,850,274.61/1,994.03
  6. Step 6: Final answer
    x = 2,432.40

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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.