Home / 6,855.39-9,460.62-3,871.29

Finding the Fourth Proportional to 6,855.39, 9,460.62 and 3,871.29

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Solution

The fourth proportional to 6,855.39, 9,460.62 and 3,871.29 is: 5,342.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.39 : 9,460.62 = 3,871.29 : x
  2. Step 2: Convert to fraction form
    6,855.39/9,460.62 = 3,871.29/x
  3. Step 3: Cross multiply
    6,855.39x = 9,460.62 × 3,871.29
  4. Step 4: Simplify right side
    6,855.39x = 36,624,803.60
  5. Step 5: Solve for x
    x = 36,624,803.60/6,855.39
  6. Step 6: Final answer
    x = 5,342.48

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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.