Home / 1,721.25-2,581.88-567.09

Finding the Fourth Proportional to 1,721.25, 2,581.88 and 567.09

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Solution

The fourth proportional to 1,721.25, 2,581.88 and 567.09 is: 850.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.25 : 2,581.88 = 567.09 : x
  2. Step 2: Convert to fraction form
    1,721.25/2,581.88 = 567.09/x
  3. Step 3: Cross multiply
    1,721.25x = 2,581.88 × 567.09
  4. Step 4: Simplify right side
    1,721.25x = 1,464,155.49
  5. Step 5: Solve for x
    x = 1,464,155.49/1,721.25
  6. Step 6: Final answer
    x = 850.64

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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.