Home / 1,621.83-2,431.61-567.39

Finding the Fourth Proportional to 1,621.83, 2,431.61 and 567.39

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Solution

The fourth proportional to 1,621.83, 2,431.61 and 567.39 is: 850.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.83 : 2,431.61 = 567.39 : x
  2. Step 2: Convert to fraction form
    1,621.83/2,431.61 = 567.39/x
  3. Step 3: Cross multiply
    1,621.83x = 2,431.61 × 567.39
  4. Step 4: Simplify right side
    1,621.83x = 1,379,659.24
  5. Step 5: Solve for x
    x = 1,379,659.24/1,621.83
  6. Step 6: Final answer
    x = 850.68

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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.