Home / 3,416.40-5,120.88-2,242.68

Finding the Fourth Proportional to 3,416.40, 5,120.88 and 2,242.68

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Solution

The fourth proportional to 3,416.40, 5,120.88 and 2,242.68 is: 3,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.40 : 5,120.88 = 2,242.68 : x
  2. Step 2: Convert to fraction form
    3,416.40/5,120.88 = 2,242.68/x
  3. Step 3: Cross multiply
    3,416.40x = 5,120.88 × 2,242.68
  4. Step 4: Simplify right side
    3,416.40x = 11,484,495.16
  5. Step 5: Solve for x
    x = 11,484,495.16/3,416.40
  6. Step 6: Final answer
    x = 3,361.58

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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.