Home / 3,837.65-5,756.61-1,240.25

Finding the Fourth Proportional to 3,837.65, 5,756.61 and 1,240.25

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Solution

The fourth proportional to 3,837.65, 5,756.61 and 1,240.25 is: 1,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.65 : 5,756.61 = 1,240.25 : x
  2. Step 2: Convert to fraction form
    3,837.65/5,756.61 = 1,240.25/x
  3. Step 3: Cross multiply
    3,837.65x = 5,756.61 × 1,240.25
  4. Step 4: Simplify right side
    3,837.65x = 7,139,635.55
  5. Step 5: Solve for x
    x = 7,139,635.55/3,837.65
  6. Step 6: Final answer
    x = 1,860.42

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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.