Home / 3,351.72-5,030.46-1,621.80

Finding the Fourth Proportional to 3,351.72, 5,030.46 and 1,621.80

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Solution

The fourth proportional to 3,351.72, 5,030.46 and 1,621.80 is: 2,434.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.72 : 5,030.46 = 1,621.80 : x
  2. Step 2: Convert to fraction form
    3,351.72/5,030.46 = 1,621.80/x
  3. Step 3: Cross multiply
    3,351.72x = 5,030.46 × 1,621.80
  4. Step 4: Simplify right side
    3,351.72x = 8,158,400.03
  5. Step 5: Solve for x
    x = 8,158,400.03/3,351.72
  6. Step 6: Final answer
    x = 2,434.09

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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.