Home / 5,571.60-7,687.45-3,087.60

Finding the Fourth Proportional to 5,571.60, 7,687.45 and 3,087.60

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Solution

The fourth proportional to 5,571.60, 7,687.45 and 3,087.60 is: 4,260.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.60 : 7,687.45 = 3,087.60 : x
  2. Step 2: Convert to fraction form
    5,571.60/7,687.45 = 3,087.60/x
  3. Step 3: Cross multiply
    5,571.60x = 7,687.45 × 3,087.60
  4. Step 4: Simplify right side
    5,571.60x = 23,735,770.62
  5. Step 5: Solve for x
    x = 23,735,770.62/5,571.60
  6. Step 6: Final answer
    x = 4,260.14

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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.