Home / 8,081.42-12,122.40-2,238.08

Finding the Fourth Proportional to 8,081.42, 12,122.40 and 2,238.08

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Solution

The fourth proportional to 8,081.42, 12,122.40 and 2,238.08 is: 3,357.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.42 : 12,122.40 = 2,238.08 : x
  2. Step 2: Convert to fraction form
    8,081.42/12,122.40 = 2,238.08/x
  3. Step 3: Cross multiply
    8,081.42x = 12,122.40 × 2,238.08
  4. Step 4: Simplify right side
    8,081.42x = 27,130,900.99
  5. Step 5: Solve for x
    x = 27,130,900.99/8,081.42
  6. Step 6: Final answer
    x = 3,357.19

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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.