Home / 5,403.21-8,102.76-2,479.46

Finding the Fourth Proportional to 5,403.21, 8,102.76 and 2,479.46

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Solution

The fourth proportional to 5,403.21, 8,102.76 and 2,479.46 is: 3,718.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.21 : 8,102.76 = 2,479.46 : x
  2. Step 2: Convert to fraction form
    5,403.21/8,102.76 = 2,479.46/x
  3. Step 3: Cross multiply
    5,403.21x = 8,102.76 × 2,479.46
  4. Step 4: Simplify right side
    5,403.21x = 20,090,469.31
  5. Step 5: Solve for x
    x = 20,090,469.31/5,403.21
  6. Step 6: Final answer
    x = 3,718.25

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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.