Home / 5,610.20-7,739.32-3,620

Finding the Fourth Proportional to 5,610.20, 7,739.32 and 3,620

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Solution

The fourth proportional to 5,610.20, 7,739.32 and 3,620 is: 4,993.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,610.20 : 7,739.32 = 3,620 : x
  2. Step 2: Convert to fraction form
    5,610.20/7,739.32 = 3,620/x
  3. Step 3: Cross multiply
    5,610.20x = 7,739.32 × 3,620
  4. Step 4: Simplify right side
    5,610.20x = 28,016,338.40
  5. Step 5: Solve for x
    x = 28,016,338.40/5,610.20
  6. Step 6: Final answer
    x = 4,993.82

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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.