Home / 3,270.66-4,905.88-1,421.77

Finding the Fourth Proportional to 3,270.66, 4,905.88 and 1,421.77

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Solution

The fourth proportional to 3,270.66, 4,905.88 and 1,421.77 is: 2,132.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.66 : 4,905.88 = 1,421.77 : x
  2. Step 2: Convert to fraction form
    3,270.66/4,905.88 = 1,421.77/x
  3. Step 3: Cross multiply
    3,270.66x = 4,905.88 × 1,421.77
  4. Step 4: Simplify right side
    3,270.66x = 6,975,025.90
  5. Step 5: Solve for x
    x = 6,975,025.90/3,270.66
  6. Step 6: Final answer
    x = 2,132.61

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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.