Home / 7,921.60-11,870.62-3,475.17

Finding the Fourth Proportional to 7,921.60, 11,870.62 and 3,475.17

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Solution

The fourth proportional to 7,921.60, 11,870.62 and 3,475.17 is: 5,207.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.60 : 11,870.62 = 3,475.17 : x
  2. Step 2: Convert to fraction form
    7,921.60/11,870.62 = 3,475.17/x
  3. Step 3: Cross multiply
    7,921.60x = 11,870.62 × 3,475.17
  4. Step 4: Simplify right side
    7,921.60x = 41,252,413.82
  5. Step 5: Solve for x
    x = 41,252,413.82/7,921.60
  6. Step 6: Final answer
    x = 5,207.59

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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.