Home / 5,644.23-7,786.47-3,285

Finding the Fourth Proportional to 5,644.23, 7,786.47 and 3,285

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Solution

The fourth proportional to 5,644.23, 7,786.47 and 3,285 is: 4,531.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.23 : 7,786.47 = 3,285 : x
  2. Step 2: Convert to fraction form
    5,644.23/7,786.47 = 3,285/x
  3. Step 3: Cross multiply
    5,644.23x = 7,786.47 × 3,285
  4. Step 4: Simplify right side
    5,644.23x = 25,578,553.95
  5. Step 5: Solve for x
    x = 25,578,553.95/5,644.23
  6. Step 6: Final answer
    x = 4,531.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.