Home / 5,571.48-7,689.04-3,213.80

Finding the Fourth Proportional to 5,571.48, 7,689.04 and 3,213.80

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Solution

The fourth proportional to 5,571.48, 7,689.04 and 3,213.80 is: 4,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.48 : 7,689.04 = 3,213.80 : x
  2. Step 2: Convert to fraction form
    5,571.48/7,689.04 = 3,213.80/x
  3. Step 3: Cross multiply
    5,571.48x = 7,689.04 × 3,213.80
  4. Step 4: Simplify right side
    5,571.48x = 24,711,036.75
  5. Step 5: Solve for x
    x = 24,711,036.75/5,571.48
  6. Step 6: Final answer
    x = 4,435.27

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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.