Home / 2,860.67-4,293.13-2,128.02

Finding the Fourth Proportional to 2,860.67, 4,293.13 and 2,128.02

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Solution

The fourth proportional to 2,860.67, 4,293.13 and 2,128.02 is: 3,193.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.67 : 4,293.13 = 2,128.02 : x
  2. Step 2: Convert to fraction form
    2,860.67/4,293.13 = 2,128.02/x
  3. Step 3: Cross multiply
    2,860.67x = 4,293.13 × 2,128.02
  4. Step 4: Simplify right side
    2,860.67x = 9,135,866.50
  5. Step 5: Solve for x
    x = 9,135,866.50/2,860.67
  6. Step 6: Final answer
    x = 3,193.61

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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.