Home / 5,281.20-7,921.83-3,632.79

Finding the Fourth Proportional to 5,281.20, 7,921.83 and 3,632.79

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Solution

The fourth proportional to 5,281.20, 7,921.83 and 3,632.79 is: 5,449.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.20 : 7,921.83 = 3,632.79 : x
  2. Step 2: Convert to fraction form
    5,281.20/7,921.83 = 3,632.79/x
  3. Step 3: Cross multiply
    5,281.20x = 7,921.83 × 3,632.79
  4. Step 4: Simplify right side
    5,281.20x = 28,778,344.81
  5. Step 5: Solve for x
    x = 28,778,344.81/5,281.20
  6. Step 6: Final answer
    x = 5,449.21

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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.