Home / 3,289.19-4,539.20-1,962.72

Finding the Fourth Proportional to 3,289.19, 4,539.20 and 1,962.72

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Solution

The fourth proportional to 3,289.19, 4,539.20 and 1,962.72 is: 2,708.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.19 : 4,539.20 = 1,962.72 : x
  2. Step 2: Convert to fraction form
    3,289.19/4,539.20 = 1,962.72/x
  3. Step 3: Cross multiply
    3,289.19x = 4,539.20 × 1,962.72
  4. Step 4: Simplify right side
    3,289.19x = 8,909,168.81
  5. Step 5: Solve for x
    x = 8,909,168.81/3,289.19
  6. Step 6: Final answer
    x = 2,708.62

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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.