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Finding the Fourth Proportional to 2,679.40, 4,014.37 and 2,346.63

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Solution

The fourth proportional to 2,679.40, 4,014.37 and 2,346.63 is: 3,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.40 : 4,014.37 = 2,346.63 : x
  2. Step 2: Convert to fraction form
    2,679.40/4,014.37 = 2,346.63/x
  3. Step 3: Cross multiply
    2,679.40x = 4,014.37 × 2,346.63
  4. Step 4: Simplify right side
    2,679.40x = 9,420,241.07
  5. Step 5: Solve for x
    x = 9,420,241.07/2,679.40
  6. Step 6: Final answer
    x = 3,515.80

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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.