Home / 6,485.04-8,949.96-3,690

Finding the Fourth Proportional to 6,485.04, 8,949.96 and 3,690

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Solution

The fourth proportional to 6,485.04, 8,949.96 and 3,690 is: 5,092.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.04 : 8,949.96 = 3,690 : x
  2. Step 2: Convert to fraction form
    6,485.04/8,949.96 = 3,690/x
  3. Step 3: Cross multiply
    6,485.04x = 8,949.96 × 3,690
  4. Step 4: Simplify right side
    6,485.04x = 33,025,352.40
  5. Step 5: Solve for x
    x = 33,025,352.40/6,485.04
  6. Step 6: Final answer
    x = 5,092.54

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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.