Home / 5,571.28-7,688.36-3,087.28

Finding the Fourth Proportional to 5,571.28, 7,688.36 and 3,087.28

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Solution

The fourth proportional to 5,571.28, 7,688.36 and 3,087.28 is: 4,260.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.28 : 7,688.36 = 3,087.28 : x
  2. Step 2: Convert to fraction form
    5,571.28/7,688.36 = 3,087.28/x
  3. Step 3: Cross multiply
    5,571.28x = 7,688.36 × 3,087.28
  4. Step 4: Simplify right side
    5,571.28x = 23,736,120.06
  5. Step 5: Solve for x
    x = 23,736,120.06/5,571.28
  6. Step 6: Final answer
    x = 4,260.44

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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.