Home / 5,528.12-7,629.36-3,171

Finding the Fourth Proportional to 5,528.12, 7,629.36 and 3,171

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Solution

The fourth proportional to 5,528.12, 7,629.36 and 3,171 is: 4,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,528.12 : 7,629.36 = 3,171 : x
  2. Step 2: Convert to fraction form
    5,528.12/7,629.36 = 3,171/x
  3. Step 3: Cross multiply
    5,528.12x = 7,629.36 × 3,171
  4. Step 4: Simplify right side
    5,528.12x = 24,192,700.56
  5. Step 5: Solve for x
    x = 24,192,700.56/5,528.12
  6. Step 6: Final answer
    x = 4,376.30

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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.