Home / 6,428.75-8,871.26-3,596.39

Finding the Fourth Proportional to 6,428.75, 8,871.26 and 3,596.39

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Solution

The fourth proportional to 6,428.75, 8,871.26 and 3,596.39 is: 4,962.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.75 : 8,871.26 = 3,596.39 : x
  2. Step 2: Convert to fraction form
    6,428.75/8,871.26 = 3,596.39/x
  3. Step 3: Cross multiply
    6,428.75x = 8,871.26 × 3,596.39
  4. Step 4: Simplify right side
    6,428.75x = 31,904,475.39
  5. Step 5: Solve for x
    x = 31,904,475.39/6,428.75
  6. Step 6: Final answer
    x = 4,962.78

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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.