Home / 7,850.40-11,768.28-2,652.64

Finding the Fourth Proportional to 7,850.40, 11,768.28 and 2,652.64

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Solution

The fourth proportional to 7,850.40, 11,768.28 and 2,652.64 is: 3,976.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.40 : 11,768.28 = 2,652.64 : x
  2. Step 2: Convert to fraction form
    7,850.40/11,768.28 = 2,652.64/x
  3. Step 3: Cross multiply
    7,850.40x = 11,768.28 × 2,652.64
  4. Step 4: Simplify right side
    7,850.40x = 31,217,010.26
  5. Step 5: Solve for x
    x = 31,217,010.26/7,850.40
  6. Step 6: Final answer
    x = 3,976.49

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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.