Home / 6,142.08-9,212.80-1,982.01

Finding the Fourth Proportional to 6,142.08, 9,212.80 and 1,982.01

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Solution

The fourth proportional to 6,142.08, 9,212.80 and 1,982.01 is: 2,972.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,142.08 : 9,212.80 = 1,982.01 : x
  2. Step 2: Convert to fraction form
    6,142.08/9,212.80 = 1,982.01/x
  3. Step 3: Cross multiply
    6,142.08x = 9,212.80 × 1,982.01
  4. Step 4: Simplify right side
    6,142.08x = 18,259,861.73
  5. Step 5: Solve for x
    x = 18,259,861.73/6,142.08
  6. Step 6: Final answer
    x = 2,972.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.