Home / 2,005.04-3,007.44-771.92

Finding the Fourth Proportional to 2,005.04, 3,007.44 and 771.92

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Solution

The fourth proportional to 2,005.04, 3,007.44 and 771.92 is: 1,157.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.04 : 3,007.44 = 771.92 : x
  2. Step 2: Convert to fraction form
    2,005.04/3,007.44 = 771.92/x
  3. Step 3: Cross multiply
    2,005.04x = 3,007.44 × 771.92
  4. Step 4: Simplify right side
    2,005.04x = 2,321,503.08
  5. Step 5: Solve for x
    x = 2,321,503.08/2,005.04
  6. Step 6: Final answer
    x = 1,157.83

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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.