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Finding the Fourth Proportional to 2,459.88, 3,699 and 1,967.40

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Solution

The fourth proportional to 2,459.88, 3,699 and 1,967.40 is: 2,958.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.88 : 3,699 = 1,967.40 : x
  2. Step 2: Convert to fraction form
    2,459.88/3,699 = 1,967.40/x
  3. Step 3: Cross multiply
    2,459.88x = 3,699 × 1,967.40
  4. Step 4: Simplify right side
    2,459.88x = 7,277,412.60
  5. Step 5: Solve for x
    x = 7,277,412.60/2,459.88
  6. Step 6: Final answer
    x = 2,958.44

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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.