Home / 6,428.70-8,872.42-3,596.23

Finding the Fourth Proportional to 6,428.70, 8,872.42 and 3,596.23

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Solution

The fourth proportional to 6,428.70, 8,872.42 and 3,596.23 is: 4,963.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.70 : 8,872.42 = 3,596.23 : x
  2. Step 2: Convert to fraction form
    6,428.70/8,872.42 = 3,596.23/x
  3. Step 3: Cross multiply
    6,428.70x = 8,872.42 × 3,596.23
  4. Step 4: Simplify right side
    6,428.70x = 31,907,227.46
  5. Step 5: Solve for x
    x = 31,907,227.46/6,428.70
  6. Step 6: Final answer
    x = 4,963.25

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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.