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Finding the Fourth Proportional to 3,800.54, 5,700.89 and 1,720.17

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Solution

The fourth proportional to 3,800.54, 5,700.89 and 1,720.17 is: 2,580.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.54 : 5,700.89 = 1,720.17 : x
  2. Step 2: Convert to fraction form
    3,800.54/5,700.89 = 1,720.17/x
  3. Step 3: Cross multiply
    3,800.54x = 5,700.89 × 1,720.17
  4. Step 4: Simplify right side
    3,800.54x = 9,806,504.25
  5. Step 5: Solve for x
    x = 9,806,504.25/3,800.54
  6. Step 6: Final answer
    x = 2,580.29

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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.