Home / 3,270.08-4,905.34-1,421.32

Finding the Fourth Proportional to 3,270.08, 4,905.34 and 1,421.32

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Solution

The fourth proportional to 3,270.08, 4,905.34 and 1,421.32 is: 2,132.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.08 : 4,905.34 = 1,421.32 : x
  2. Step 2: Convert to fraction form
    3,270.08/4,905.34 = 1,421.32/x
  3. Step 3: Cross multiply
    3,270.08x = 4,905.34 × 1,421.32
  4. Step 4: Simplify right side
    3,270.08x = 6,972,057.85
  5. Step 5: Solve for x
    x = 6,972,057.85/3,270.08
  6. Step 6: Final answer
    x = 2,132.08

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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.