Home / 2,858.67-4,290.13-2,126.02

Finding the Fourth Proportional to 2,858.67, 4,290.13 and 2,126.02

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Solution

The fourth proportional to 2,858.67, 4,290.13 and 2,126.02 is: 3,190.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.67 : 4,290.13 = 2,126.02 : x
  2. Step 2: Convert to fraction form
    2,858.67/4,290.13 = 2,126.02/x
  3. Step 3: Cross multiply
    2,858.67x = 4,290.13 × 2,126.02
  4. Step 4: Simplify right side
    2,858.67x = 9,120,902.18
  5. Step 5: Solve for x
    x = 9,120,902.18/2,858.67
  6. Step 6: Final answer
    x = 3,190.61

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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.