Home / 3,102.21-4,649.36-1,455.12

Finding the Fourth Proportional to 3,102.21, 4,649.36 and 1,455.12

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Solution

The fourth proportional to 3,102.21, 4,649.36 and 1,455.12 is: 2,180.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.21 : 4,649.36 = 1,455.12 : x
  2. Step 2: Convert to fraction form
    3,102.21/4,649.36 = 1,455.12/x
  3. Step 3: Cross multiply
    3,102.21x = 4,649.36 × 1,455.12
  4. Step 4: Simplify right side
    3,102.21x = 6,765,369.45
  5. Step 5: Solve for x
    x = 6,765,369.45/3,102.21
  6. Step 6: Final answer
    x = 2,180.82

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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.