Home / 7,880.43-11,821.89-2,950.77

Finding the Fourth Proportional to 7,880.43, 11,821.89 and 2,950.77

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Solution

The fourth proportional to 7,880.43, 11,821.89 and 2,950.77 is: 4,426.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.43 : 11,821.89 = 2,950.77 : x
  2. Step 2: Convert to fraction form
    7,880.43/11,821.89 = 2,950.77/x
  3. Step 3: Cross multiply
    7,880.43x = 11,821.89 × 2,950.77
  4. Step 4: Simplify right side
    7,880.43x = 34,883,678.36
  5. Step 5: Solve for x
    x = 34,883,678.36/7,880.43
  6. Step 6: Final answer
    x = 4,426.62

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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.