Home / 3,581.76-5,372.61-2,860.05

Finding the Fourth Proportional to 3,581.76, 5,372.61 and 2,860.05

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Solution

The fourth proportional to 3,581.76, 5,372.61 and 2,860.05 is: 4,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.76 : 5,372.61 = 2,860.05 : x
  2. Step 2: Convert to fraction form
    3,581.76/5,372.61 = 2,860.05/x
  3. Step 3: Cross multiply
    3,581.76x = 5,372.61 × 2,860.05
  4. Step 4: Simplify right side
    3,581.76x = 15,365,933.23
  5. Step 5: Solve for x
    x = 15,365,933.23/3,581.76
  6. Step 6: Final answer
    x = 4,290.05

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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.