Home / 7,859.64-11,780.96-3,964.35

Finding the Fourth Proportional to 7,859.64, 11,780.96 and 3,964.35

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Solution

The fourth proportional to 7,859.64, 11,780.96 and 3,964.35 is: 5,942.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.64 : 11,780.96 = 3,964.35 : x
  2. Step 2: Convert to fraction form
    7,859.64/11,780.96 = 3,964.35/x
  3. Step 3: Cross multiply
    7,859.64x = 11,780.96 × 3,964.35
  4. Step 4: Simplify right side
    7,859.64x = 46,703,828.95
  5. Step 5: Solve for x
    x = 46,703,828.95/7,859.64
  6. Step 6: Final answer
    x = 5,942.24

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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.