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Finding the Fourth Proportional to 1,764.30, 2,644.02 and 1,330.98

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Solution

The fourth proportional to 1,764.30, 2,644.02 and 1,330.98 is: 1,994.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.30 : 2,644.02 = 1,330.98 : x
  2. Step 2: Convert to fraction form
    1,764.30/2,644.02 = 1,330.98/x
  3. Step 3: Cross multiply
    1,764.30x = 2,644.02 × 1,330.98
  4. Step 4: Simplify right side
    1,764.30x = 3,519,137.74
  5. Step 5: Solve for x
    x = 3,519,137.74/1,764.30
  6. Step 6: Final answer
    x = 1,994.64

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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.