Home / 3,366.18-4,645-1,949.28

Finding the Fourth Proportional to 3,366.18, 4,645 and 1,949.28

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Solution

The fourth proportional to 3,366.18, 4,645 and 1,949.28 is: 2,689.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,366.18 : 4,645 = 1,949.28 : x
  2. Step 2: Convert to fraction form
    3,366.18/4,645 = 1,949.28/x
  3. Step 3: Cross multiply
    3,366.18x = 4,645 × 1,949.28
  4. Step 4: Simplify right side
    3,366.18x = 9,054,405.60
  5. Step 5: Solve for x
    x = 9,054,405.60/3,366.18
  6. Step 6: Final answer
    x = 2,689.82

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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.