Home / 5,571.68-7,690.56-3,215.48

Finding the Fourth Proportional to 5,571.68, 7,690.56 and 3,215.48

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Solution

The fourth proportional to 5,571.68, 7,690.56 and 3,215.48 is: 4,438.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.68 : 7,690.56 = 3,215.48 : x
  2. Step 2: Convert to fraction form
    5,571.68/7,690.56 = 3,215.48/x
  3. Step 3: Cross multiply
    5,571.68x = 7,690.56 × 3,215.48
  4. Step 4: Simplify right side
    5,571.68x = 24,728,841.87
  5. Step 5: Solve for x
    x = 24,728,841.87/5,571.68
  6. Step 6: Final answer
    x = 4,438.31

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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.