Home / 2,485.70-3,723.15-2,212.10

Finding the Fourth Proportional to 2,485.70, 3,723.15 and 2,212.10

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Solution

The fourth proportional to 2,485.70, 3,723.15 and 2,212.10 is: 3,313.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.70 : 3,723.15 = 2,212.10 : x
  2. Step 2: Convert to fraction form
    2,485.70/3,723.15 = 2,212.10/x
  3. Step 3: Cross multiply
    2,485.70x = 3,723.15 × 2,212.10
  4. Step 4: Simplify right side
    2,485.70x = 8,235,980.12
  5. Step 5: Solve for x
    x = 8,235,980.12/2,485.70
  6. Step 6: Final answer
    x = 3,313.34

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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.