Home / 3,890.66-5,829.26-2,621.84

Finding the Fourth Proportional to 3,890.66, 5,829.26 and 2,621.84

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Solution

The fourth proportional to 3,890.66, 5,829.26 and 2,621.84 is: 3,928.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.66 : 5,829.26 = 2,621.84 : x
  2. Step 2: Convert to fraction form
    3,890.66/5,829.26 = 2,621.84/x
  3. Step 3: Cross multiply
    3,890.66x = 5,829.26 × 2,621.84
  4. Step 4: Simplify right side
    3,890.66x = 15,283,387.04
  5. Step 5: Solve for x
    x = 15,283,387.04/3,890.66
  6. Step 6: Final answer
    x = 3,928.22

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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.