Home / 7,890.90-11,834.31-2,342.99

Finding the Fourth Proportional to 7,890.90, 11,834.31 and 2,342.99

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Solution

The fourth proportional to 7,890.90, 11,834.31 and 2,342.99 is: 3,513.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.90 : 11,834.31 = 2,342.99 : x
  2. Step 2: Convert to fraction form
    7,890.90/11,834.31 = 2,342.99/x
  3. Step 3: Cross multiply
    7,890.90x = 11,834.31 × 2,342.99
  4. Step 4: Simplify right side
    7,890.90x = 27,727,678.77
  5. Step 5: Solve for x
    x = 27,727,678.77/7,890.90
  6. Step 6: Final answer
    x = 3,513.88

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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.