Home / 5,608.80-8,406.24-2,485.20

Finding the Fourth Proportional to 5,608.80, 8,406.24 and 2,485.20

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Solution

The fourth proportional to 5,608.80, 8,406.24 and 2,485.20 is: 3,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.80 : 8,406.24 = 2,485.20 : x
  2. Step 2: Convert to fraction form
    5,608.80/8,406.24 = 2,485.20/x
  3. Step 3: Cross multiply
    5,608.80x = 8,406.24 × 2,485.20
  4. Step 4: Simplify right side
    5,608.80x = 20,891,187.65
  5. Step 5: Solve for x
    x = 20,891,187.65/5,608.80
  6. Step 6: Final answer
    x = 3,724.72

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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.