Home / 5,571.09-7,688.57-3,181.80

Finding the Fourth Proportional to 5,571.09, 7,688.57 and 3,181.80

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Solution

The fourth proportional to 5,571.09, 7,688.57 and 3,181.80 is: 4,391.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.09 : 7,688.57 = 3,181.80 : x
  2. Step 2: Convert to fraction form
    5,571.09/7,688.57 = 3,181.80/x
  3. Step 3: Cross multiply
    5,571.09x = 7,688.57 × 3,181.80
  4. Step 4: Simplify right side
    5,571.09x = 24,463,476.12
  5. Step 5: Solve for x
    x = 24,463,476.12/5,571.09
  6. Step 6: Final answer
    x = 4,391.15

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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.