Home / 7,764.84-11,647.32-2,218.16

Finding the Fourth Proportional to 7,764.84, 11,647.32 and 2,218.16

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Solution

The fourth proportional to 7,764.84, 11,647.32 and 2,218.16 is: 3,327.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.84 : 11,647.32 = 2,218.16 : x
  2. Step 2: Convert to fraction form
    7,764.84/11,647.32 = 2,218.16/x
  3. Step 3: Cross multiply
    7,764.84x = 11,647.32 × 2,218.16
  4. Step 4: Simplify right side
    7,764.84x = 25,835,619.33
  5. Step 5: Solve for x
    x = 25,835,619.33/7,764.84
  6. Step 6: Final answer
    x = 3,327.26

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1.5x scale

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.