Home / 2,914.34-4,372.70-2,138.30

Finding the Fourth Proportional to 2,914.34, 4,372.70 and 2,138.30

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Solution

The fourth proportional to 2,914.34, 4,372.70 and 2,138.30 is: 3,208.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.34 : 4,372.70 = 2,138.30 : x
  2. Step 2: Convert to fraction form
    2,914.34/4,372.70 = 2,138.30/x
  3. Step 3: Cross multiply
    2,914.34x = 4,372.70 × 2,138.30
  4. Step 4: Simplify right side
    2,914.34x = 9,350,122.55
  5. Step 5: Solve for x
    x = 9,350,122.55/2,914.34
  6. Step 6: Final answer
    x = 3,208.32

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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.