Home / 5,619.66-7,756.20-3,261.75

Finding the Fourth Proportional to 5,619.66, 7,756.20 and 3,261.75

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Solution

The fourth proportional to 5,619.66, 7,756.20 and 3,261.75 is: 4,501.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.66 : 7,756.20 = 3,261.75 : x
  2. Step 2: Convert to fraction form
    5,619.66/7,756.20 = 3,261.75/x
  3. Step 3: Cross multiply
    5,619.66x = 7,756.20 × 3,261.75
  4. Step 4: Simplify right side
    5,619.66x = 25,298,785.35
  5. Step 5: Solve for x
    x = 25,298,785.35/5,619.66
  6. Step 6: Final answer
    x = 4,501.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.