Home / 5,712.81-7,882.89-3,194.79

Finding the Fourth Proportional to 5,712.81, 7,882.89 and 3,194.79

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Solution

The fourth proportional to 5,712.81, 7,882.89 and 3,194.79 is: 4,408.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.81 : 7,882.89 = 3,194.79 : x
  2. Step 2: Convert to fraction form
    5,712.81/7,882.89 = 3,194.79/x
  3. Step 3: Cross multiply
    5,712.81x = 7,882.89 × 3,194.79
  4. Step 4: Simplify right side
    5,712.81x = 25,184,178.14
  5. Step 5: Solve for x
    x = 25,184,178.14/5,712.81
  6. Step 6: Final answer
    x = 4,408.37

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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.