Home / 5,081.51-7,011.80-2,843.14

Finding the Fourth Proportional to 5,081.51, 7,011.80 and 2,843.14

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Solution

The fourth proportional to 5,081.51, 7,011.80 and 2,843.14 is: 3,923.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.51 : 7,011.80 = 2,843.14 : x
  2. Step 2: Convert to fraction form
    5,081.51/7,011.80 = 2,843.14/x
  3. Step 3: Cross multiply
    5,081.51x = 7,011.80 × 2,843.14
  4. Step 4: Simplify right side
    5,081.51x = 19,935,493.99
  5. Step 5: Solve for x
    x = 19,935,493.99/5,081.51
  6. Step 6: Final answer
    x = 3,923.15

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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.