Home / 3,336.40-5,005.50-1,388.14

Finding the Fourth Proportional to 3,336.40, 5,005.50 and 1,388.14

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Solution

The fourth proportional to 3,336.40, 5,005.50 and 1,388.14 is: 2,082.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,336.40 : 5,005.50 = 1,388.14 : x
  2. Step 2: Convert to fraction form
    3,336.40/5,005.50 = 1,388.14/x
  3. Step 3: Cross multiply
    3,336.40x = 5,005.50 × 1,388.14
  4. Step 4: Simplify right side
    3,336.40x = 6,948,334.77
  5. Step 5: Solve for x
    x = 6,948,334.77/3,336.40
  6. Step 6: Final answer
    x = 2,082.58

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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.