Home / 6,428.96-8,872.79-3,596.49

Finding the Fourth Proportional to 6,428.96, 8,872.79 and 3,596.49

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Solution

The fourth proportional to 6,428.96, 8,872.79 and 3,596.49 is: 4,963.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.96 : 8,872.79 = 3,596.49 : x
  2. Step 2: Convert to fraction form
    6,428.96/8,872.79 = 3,596.49/x
  3. Step 3: Cross multiply
    6,428.96x = 8,872.79 × 3,596.49
  4. Step 4: Simplify right side
    6,428.96x = 31,910,882.52
  5. Step 5: Solve for x
    x = 31,910,882.52/6,428.96
  6. Step 6: Final answer
    x = 4,963.62

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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.