Home / 3,720.76-5,581.26-1,771.96

Finding the Fourth Proportional to 3,720.76, 5,581.26 and 1,771.96

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Solution

The fourth proportional to 3,720.76, 5,581.26 and 1,771.96 is: 2,658.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.76 : 5,581.26 = 1,771.96 : x
  2. Step 2: Convert to fraction form
    3,720.76/5,581.26 = 1,771.96/x
  3. Step 3: Cross multiply
    3,720.76x = 5,581.26 × 1,771.96
  4. Step 4: Simplify right side
    3,720.76x = 9,889,769.47
  5. Step 5: Solve for x
    x = 9,889,769.47/3,720.76
  6. Step 6: Final answer
    x = 2,658.00

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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.