Home / 7,935.80-11,907.75-3,259.40

Finding the Fourth Proportional to 7,935.80, 11,907.75 and 3,259.40

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Solution

The fourth proportional to 7,935.80, 11,907.75 and 3,259.40 is: 4,890.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.80 : 11,907.75 = 3,259.40 : x
  2. Step 2: Convert to fraction form
    7,935.80/11,907.75 = 3,259.40/x
  3. Step 3: Cross multiply
    7,935.80x = 11,907.75 × 3,259.40
  4. Step 4: Simplify right side
    7,935.80x = 38,812,120.35
  5. Step 5: Solve for x
    x = 38,812,120.35/7,935.80
  6. Step 6: Final answer
    x = 4,890.76

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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.