Home / 5,571.56-7,694.58-3,807.72

Finding the Fourth Proportional to 5,571.56, 7,694.58 and 3,807.72

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Solution

The fourth proportional to 5,571.56, 7,694.58 and 3,807.72 is: 5,258.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.56 : 7,694.58 = 3,807.72 : x
  2. Step 2: Convert to fraction form
    5,571.56/7,694.58 = 3,807.72/x
  3. Step 3: Cross multiply
    5,571.56x = 7,694.58 × 3,807.72
  4. Step 4: Simplify right side
    5,571.56x = 29,298,806.16
  5. Step 5: Solve for x
    x = 29,298,806.16/5,571.56
  6. Step 6: Final answer
    x = 5,258.64

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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.