Home / 2,861.22-4,290.75-1,475.31

Finding the Fourth Proportional to 2,861.22, 4,290.75 and 1,475.31

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Solution

The fourth proportional to 2,861.22, 4,290.75 and 1,475.31 is: 2,212.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.22 : 4,290.75 = 1,475.31 : x
  2. Step 2: Convert to fraction form
    2,861.22/4,290.75 = 1,475.31/x
  3. Step 3: Cross multiply
    2,861.22x = 4,290.75 × 1,475.31
  4. Step 4: Simplify right side
    2,861.22x = 6,330,186.38
  5. Step 5: Solve for x
    x = 6,330,186.38/2,861.22
  6. Step 6: Final answer
    x = 2,212.41

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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.