Home / 3,289.96-4,935-1,340.80

Finding the Fourth Proportional to 3,289.96, 4,935 and 1,340.80

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Solution

The fourth proportional to 3,289.96, 4,935 and 1,340.80 is: 2,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.96 : 4,935 = 1,340.80 : x
  2. Step 2: Convert to fraction form
    3,289.96/4,935 = 1,340.80/x
  3. Step 3: Cross multiply
    3,289.96x = 4,935 × 1,340.80
  4. Step 4: Simplify right side
    3,289.96x = 6,616,848
  5. Step 5: Solve for x
    x = 6,616,848/3,289.96
  6. Step 6: Final answer
    x = 2,011.22

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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.