Home / 7,890.49-11,835.83-2,343.70

Finding the Fourth Proportional to 7,890.49, 11,835.83 and 2,343.70

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Solution

The fourth proportional to 7,890.49, 11,835.83 and 2,343.70 is: 3,515.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.49 : 11,835.83 = 2,343.70 : x
  2. Step 2: Convert to fraction form
    7,890.49/11,835.83 = 2,343.70/x
  3. Step 3: Cross multiply
    7,890.49x = 11,835.83 × 2,343.70
  4. Step 4: Simplify right side
    7,890.49x = 27,739,634.77
  5. Step 5: Solve for x
    x = 27,739,634.77/7,890.49
  6. Step 6: Final answer
    x = 3,515.58

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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.