Home / 5,720.80-8,581.84-1,824.32

Finding the Fourth Proportional to 5,720.80, 8,581.84 and 1,824.32

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Solution

The fourth proportional to 5,720.80, 8,581.84 and 1,824.32 is: 2,736.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.80 : 8,581.84 = 1,824.32 : x
  2. Step 2: Convert to fraction form
    5,720.80/8,581.84 = 1,824.32/x
  3. Step 3: Cross multiply
    5,720.80x = 8,581.84 × 1,824.32
  4. Step 4: Simplify right side
    5,720.80x = 15,656,022.35
  5. Step 5: Solve for x
    x = 15,656,022.35/5,720.80
  6. Step 6: Final answer
    x = 2,736.68

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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.