Home / 2,860.45-4,291.12-1,217

Finding the Fourth Proportional to 2,860.45, 4,291.12 and 1,217

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Solution

The fourth proportional to 2,860.45, 4,291.12 and 1,217 is: 1,825.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.45 : 4,291.12 = 1,217 : x
  2. Step 2: Convert to fraction form
    2,860.45/4,291.12 = 1,217/x
  3. Step 3: Cross multiply
    2,860.45x = 4,291.12 × 1,217
  4. Step 4: Simplify right side
    2,860.45x = 5,222,293.04
  5. Step 5: Solve for x
    x = 5,222,293.04/2,860.45
  6. Step 6: Final answer
    x = 1,825.69

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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.