Home / 7,825.83-11,739.69-2,631.84

Finding the Fourth Proportional to 7,825.83, 11,739.69 and 2,631.84

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Solution

The fourth proportional to 7,825.83, 11,739.69 and 2,631.84 is: 3,948.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.83 : 11,739.69 = 2,631.84 : x
  2. Step 2: Convert to fraction form
    7,825.83/11,739.69 = 2,631.84/x
  3. Step 3: Cross multiply
    7,825.83x = 11,739.69 × 2,631.84
  4. Step 4: Simplify right side
    7,825.83x = 30,896,985.73
  5. Step 5: Solve for x
    x = 30,896,985.73/7,825.83
  6. Step 6: Final answer
    x = 3,948.08

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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.