Home / 3,008.61-4,157.82-2,571.21

Finding the Fourth Proportional to 3,008.61, 4,157.82 and 2,571.21

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Solution

The fourth proportional to 3,008.61, 4,157.82 and 2,571.21 is: 3,553.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,008.61 : 4,157.82 = 2,571.21 : x
  2. Step 2: Convert to fraction form
    3,008.61/4,157.82 = 2,571.21/x
  3. Step 3: Cross multiply
    3,008.61x = 4,157.82 × 2,571.21
  4. Step 4: Simplify right side
    3,008.61x = 10,690,628.36
  5. Step 5: Solve for x
    x = 10,690,628.36/3,008.61
  6. Step 6: Final answer
    x = 3,553.34

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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.