Home / 7,868.16-11,800.53-2,320.56

Finding the Fourth Proportional to 7,868.16, 11,800.53 and 2,320.56

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Solution

The fourth proportional to 7,868.16, 11,800.53 and 2,320.56 is: 3,480.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.16 : 11,800.53 = 2,320.56 : x
  2. Step 2: Convert to fraction form
    7,868.16/11,800.53 = 2,320.56/x
  3. Step 3: Cross multiply
    7,868.16x = 11,800.53 × 2,320.56
  4. Step 4: Simplify right side
    7,868.16x = 27,383,837.90
  5. Step 5: Solve for x
    x = 27,383,837.90/7,868.16
  6. Step 6: Final answer
    x = 3,480.34

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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.