Home / 2,860.12-4,289.10-1,217.44

Finding the Fourth Proportional to 2,860.12, 4,289.10 and 1,217.44

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Solution

The fourth proportional to 2,860.12, 4,289.10 and 1,217.44 is: 1,825.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.12 : 4,289.10 = 1,217.44 : x
  2. Step 2: Convert to fraction form
    2,860.12/4,289.10 = 1,217.44/x
  3. Step 3: Cross multiply
    2,860.12x = 4,289.10 × 1,217.44
  4. Step 4: Simplify right side
    2,860.12x = 5,221,721.90
  5. Step 5: Solve for x
    x = 5,221,721.90/2,860.12
  6. Step 6: Final answer
    x = 1,825.70

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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.