Home / 3,837.89-5,757.65-1,240.63

Finding the Fourth Proportional to 3,837.89, 5,757.65 and 1,240.63

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Solution

The fourth proportional to 3,837.89, 5,757.65 and 1,240.63 is: 1,861.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.89 : 5,757.65 = 1,240.63 : x
  2. Step 2: Convert to fraction form
    3,837.89/5,757.65 = 1,240.63/x
  3. Step 3: Cross multiply
    3,837.89x = 5,757.65 × 1,240.63
  4. Step 4: Simplify right side
    3,837.89x = 7,143,113.32
  5. Step 5: Solve for x
    x = 7,143,113.32/3,837.89
  6. Step 6: Final answer
    x = 1,861.21

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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.