Home / 7,890.20-11,833.14-2,959.46

Finding the Fourth Proportional to 7,890.20, 11,833.14 and 2,959.46

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Solution

The fourth proportional to 7,890.20, 11,833.14 and 2,959.46 is: 4,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.20 : 11,833.14 = 2,959.46 : x
  2. Step 2: Convert to fraction form
    7,890.20/11,833.14 = 2,959.46/x
  3. Step 3: Cross multiply
    7,890.20x = 11,833.14 × 2,959.46
  4. Step 4: Simplify right side
    7,890.20x = 35,019,704.50
  5. Step 5: Solve for x
    x = 35,019,704.50/7,890.20
  6. Step 6: Final answer
    x = 4,438.38

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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.