Home / 2,621.97-3,938.43-1,528.47

Finding the Fourth Proportional to 2,621.97, 3,938.43 and 1,528.47

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Solution

The fourth proportional to 2,621.97, 3,938.43 and 1,528.47 is: 2,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.97 : 3,938.43 = 1,528.47 : x
  2. Step 2: Convert to fraction form
    2,621.97/3,938.43 = 1,528.47/x
  3. Step 3: Cross multiply
    2,621.97x = 3,938.43 × 1,528.47
  4. Step 4: Simplify right side
    2,621.97x = 6,019,786.87
  5. Step 5: Solve for x
    x = 6,019,786.87/2,621.97
  6. Step 6: Final answer
    x = 2,295.90

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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.