Home / 2,723.70-4,089.60-2,108.10

Finding the Fourth Proportional to 2,723.70, 4,089.60 and 2,108.10

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Solution

The fourth proportional to 2,723.70, 4,089.60 and 2,108.10 is: 3,165.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,723.70 : 4,089.60 = 2,108.10 : x
  2. Step 2: Convert to fraction form
    2,723.70/4,089.60 = 2,108.10/x
  3. Step 3: Cross multiply
    2,723.70x = 4,089.60 × 2,108.10
  4. Step 4: Simplify right side
    2,723.70x = 8,621,285.76
  5. Step 5: Solve for x
    x = 8,621,285.76/2,723.70
  6. Step 6: Final answer
    x = 3,165.28

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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.