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Finding the Fourth Proportional to 1,720.52, 2,580.96 and 550.25

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Solution

The fourth proportional to 1,720.52, 2,580.96 and 550.25 is: 825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.52 : 2,580.96 = 550.25 : x
  2. Step 2: Convert to fraction form
    1,720.52/2,580.96 = 550.25/x
  3. Step 3: Cross multiply
    1,720.52x = 2,580.96 × 550.25
  4. Step 4: Simplify right side
    1,720.52x = 1,420,160.34
  5. Step 5: Solve for x
    x = 1,420,160.34/1,720.52
  6. Step 6: Final answer
    x = 825.43

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1.5x scale

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.