Home / 5,072.88-7,609.32-3,125.76

Finding the Fourth Proportional to 5,072.88, 7,609.32 and 3,125.76

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Solution

The fourth proportional to 5,072.88, 7,609.32 and 3,125.76 is: 4,688.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.88 : 7,609.32 = 3,125.76 : x
  2. Step 2: Convert to fraction form
    5,072.88/7,609.32 = 3,125.76/x
  3. Step 3: Cross multiply
    5,072.88x = 7,609.32 × 3,125.76
  4. Step 4: Simplify right side
    5,072.88x = 23,784,908.08
  5. Step 5: Solve for x
    x = 23,784,908.08/5,072.88
  6. Step 6: Final answer
    x = 4,688.64

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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.