Home / 3,269.28-4,901.52-1,420.32

Finding the Fourth Proportional to 3,269.28, 4,901.52 and 1,420.32

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Solution

The fourth proportional to 3,269.28, 4,901.52 and 1,420.32 is: 2,129.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.28 : 4,901.52 = 1,420.32 : x
  2. Step 2: Convert to fraction form
    3,269.28/4,901.52 = 1,420.32/x
  3. Step 3: Cross multiply
    3,269.28x = 4,901.52 × 1,420.32
  4. Step 4: Simplify right side
    3,269.28x = 6,961,726.89
  5. Step 5: Solve for x
    x = 6,961,726.89/3,269.28
  6. Step 6: Final answer
    x = 2,129.44

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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.