Home / 2,860.82-4,289.85-1,216.47

Finding the Fourth Proportional to 2,860.82, 4,289.85 and 1,216.47

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Solution

The fourth proportional to 2,860.82, 4,289.85 and 1,216.47 is: 1,824.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.82 : 4,289.85 = 1,216.47 : x
  2. Step 2: Convert to fraction form
    2,860.82/4,289.85 = 1,216.47/x
  3. Step 3: Cross multiply
    2,860.82x = 4,289.85 × 1,216.47
  4. Step 4: Simplify right side
    2,860.82x = 5,218,473.83
  5. Step 5: Solve for x
    x = 5,218,473.83/2,860.82
  6. Step 6: Final answer
    x = 1,824.12

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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.