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Finding the Fourth Proportional to 2,679.04, 4,016.44 and 1,740

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Solution

The fourth proportional to 2,679.04, 4,016.44 and 1,740 is: 2,608.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.04 : 4,016.44 = 1,740 : x
  2. Step 2: Convert to fraction form
    2,679.04/4,016.44 = 1,740/x
  3. Step 3: Cross multiply
    2,679.04x = 4,016.44 × 1,740
  4. Step 4: Simplify right side
    2,679.04x = 6,988,605.60
  5. Step 5: Solve for x
    x = 6,988,605.60/2,679.04
  6. Step 6: Final answer
    x = 2,608.62

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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.