Home / 3,269.96-4,905.28-1,420.54

Finding the Fourth Proportional to 3,269.96, 4,905.28 and 1,420.54

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Solution

The fourth proportional to 3,269.96, 4,905.28 and 1,420.54 is: 2,130.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.96 : 4,905.28 = 1,420.54 : x
  2. Step 2: Convert to fraction form
    3,269.96/4,905.28 = 1,420.54/x
  3. Step 3: Cross multiply
    3,269.96x = 4,905.28 × 1,420.54
  4. Step 4: Simplify right side
    3,269.96x = 6,968,146.45
  5. Step 5: Solve for x
    x = 6,968,146.45/3,269.96
  6. Step 6: Final answer
    x = 2,130.96

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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.