Home / 2,455.45-3,682.90-723.94

Finding the Fourth Proportional to 2,455.45, 3,682.90 and 723.94

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Solution

The fourth proportional to 2,455.45, 3,682.90 and 723.94 is: 1,085.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.45 : 3,682.90 = 723.94 : x
  2. Step 2: Convert to fraction form
    2,455.45/3,682.90 = 723.94/x
  3. Step 3: Cross multiply
    2,455.45x = 3,682.90 × 723.94
  4. Step 4: Simplify right side
    2,455.45x = 2,666,190.32
  5. Step 5: Solve for x
    x = 2,666,190.32/2,455.45
  6. Step 6: Final answer
    x = 1,085.83

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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.