Home / 4,982.72-6,878.79-3,861.14

Finding the Fourth Proportional to 4,982.72, 6,878.79 and 3,861.14

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Solution

The fourth proportional to 4,982.72, 6,878.79 and 3,861.14 is: 5,330.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.72 : 6,878.79 = 3,861.14 : x
  2. Step 2: Convert to fraction form
    4,982.72/6,878.79 = 3,861.14/x
  3. Step 3: Cross multiply
    4,982.72x = 6,878.79 × 3,861.14
  4. Step 4: Simplify right side
    4,982.72x = 26,559,936.83
  5. Step 5: Solve for x
    x = 26,559,936.83/4,982.72
  6. Step 6: Final answer
    x = 5,330.41

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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.