Home / 7,900.10-11,849.72-2,969.36

Finding the Fourth Proportional to 7,900.10, 11,849.72 and 2,969.36

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Solution

The fourth proportional to 7,900.10, 11,849.72 and 2,969.36 is: 4,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.10 : 11,849.72 = 2,969.36 : x
  2. Step 2: Convert to fraction form
    7,900.10/11,849.72 = 2,969.36/x
  3. Step 3: Cross multiply
    7,900.10x = 11,849.72 × 2,969.36
  4. Step 4: Simplify right side
    7,900.10x = 35,186,084.58
  5. Step 5: Solve for x
    x = 35,186,084.58/7,900.10
  6. Step 6: Final answer
    x = 4,453.88

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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.