Home / 5,107.28-7,660.08-3,171.44

Finding the Fourth Proportional to 5,107.28, 7,660.08 and 3,171.44

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Solution

The fourth proportional to 5,107.28, 7,660.08 and 3,171.44 is: 4,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.28 : 7,660.08 = 3,171.44 : x
  2. Step 2: Convert to fraction form
    5,107.28/7,660.08 = 3,171.44/x
  3. Step 3: Cross multiply
    5,107.28x = 7,660.08 × 3,171.44
  4. Step 4: Simplify right side
    5,107.28x = 24,293,484.12
  5. Step 5: Solve for x
    x = 24,293,484.12/5,107.28
  6. Step 6: Final answer
    x = 4,756.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.