Home / 4,118.24-5,678.91-2,860.72

Finding the Fourth Proportional to 4,118.24, 5,678.91 and 2,860.72

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Solution

The fourth proportional to 4,118.24, 5,678.91 and 2,860.72 is: 3,944.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118.24 : 5,678.91 = 2,860.72 : x
  2. Step 2: Convert to fraction form
    4,118.24/5,678.91 = 2,860.72/x
  3. Step 3: Cross multiply
    4,118.24x = 5,678.91 × 2,860.72
  4. Step 4: Simplify right side
    4,118.24x = 16,245,757.22
  5. Step 5: Solve for x
    x = 16,245,757.22/4,118.24
  6. Step 6: Final answer
    x = 3,944.83

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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.