Home / 3,289.86-4,538.55-1,962.79

Finding the Fourth Proportional to 3,289.86, 4,538.55 and 1,962.79

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Solution

The fourth proportional to 3,289.86, 4,538.55 and 1,962.79 is: 2,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.86 : 4,538.55 = 1,962.79 : x
  2. Step 2: Convert to fraction form
    3,289.86/4,538.55 = 1,962.79/x
  3. Step 3: Cross multiply
    3,289.86x = 4,538.55 × 1,962.79
  4. Step 4: Simplify right side
    3,289.86x = 8,908,212.77
  5. Step 5: Solve for x
    x = 8,908,212.77/3,289.86
  6. Step 6: Final answer
    x = 2,707.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.