Home / 2,861.67-4,294.63-2,129.02

Finding the Fourth Proportional to 2,861.67, 4,294.63 and 2,129.02

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Solution

The fourth proportional to 2,861.67, 4,294.63 and 2,129.02 is: 3,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.67 : 4,294.63 = 2,129.02 : x
  2. Step 2: Convert to fraction form
    2,861.67/4,294.63 = 2,129.02/x
  3. Step 3: Cross multiply
    2,861.67x = 4,294.63 × 2,129.02
  4. Step 4: Simplify right side
    2,861.67x = 9,143,353.16
  5. Step 5: Solve for x
    x = 9,143,353.16/2,861.67
  6. Step 6: Final answer
    x = 3,195.11

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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.