Home / 7,985.25-11,982.74-3,368.25

Finding the Fourth Proportional to 7,985.25, 11,982.74 and 3,368.25

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Solution

The fourth proportional to 7,985.25, 11,982.74 and 3,368.25 is: 5,054.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.25 : 11,982.74 = 3,368.25 : x
  2. Step 2: Convert to fraction form
    7,985.25/11,982.74 = 3,368.25/x
  3. Step 3: Cross multiply
    7,985.25x = 11,982.74 × 3,368.25
  4. Step 4: Simplify right side
    7,985.25x = 40,360,847.16
  5. Step 5: Solve for x
    x = 40,360,847.16/7,985.25
  6. Step 6: Final answer
    x = 5,054.42

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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.