Home / 7,865.99-11,788.49-2,930.66

Finding the Fourth Proportional to 7,865.99, 11,788.49 and 2,930.66

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Solution

The fourth proportional to 7,865.99, 11,788.49 and 2,930.66 is: 4,392.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.99 : 11,788.49 = 2,930.66 : x
  2. Step 2: Convert to fraction form
    7,865.99/11,788.49 = 2,930.66/x
  3. Step 3: Cross multiply
    7,865.99x = 11,788.49 × 2,930.66
  4. Step 4: Simplify right side
    7,865.99x = 34,548,056.10
  5. Step 5: Solve for x
    x = 34,548,056.10/7,865.99
  6. Step 6: Final answer
    x = 4,392.08

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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.