Home / 7,758.66-11,638.53-2,568.18

Finding the Fourth Proportional to 7,758.66, 11,638.53 and 2,568.18

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Solution

The fourth proportional to 7,758.66, 11,638.53 and 2,568.18 is: 3,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.66 : 11,638.53 = 2,568.18 : x
  2. Step 2: Convert to fraction form
    7,758.66/11,638.53 = 2,568.18/x
  3. Step 3: Cross multiply
    7,758.66x = 11,638.53 × 2,568.18
  4. Step 4: Simplify right side
    7,758.66x = 29,889,839.98
  5. Step 5: Solve for x
    x = 29,889,839.98/7,758.66
  6. Step 6: Final answer
    x = 3,852.45

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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.