Home / 3,467.60-5,202.36-1,388.40

Finding the Fourth Proportional to 3,467.60, 5,202.36 and 1,388.40

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Solution

The fourth proportional to 3,467.60, 5,202.36 and 1,388.40 is: 2,082.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,467.60 : 5,202.36 = 1,388.40 : x
  2. Step 2: Convert to fraction form
    3,467.60/5,202.36 = 1,388.40/x
  3. Step 3: Cross multiply
    3,467.60x = 5,202.36 × 1,388.40
  4. Step 4: Simplify right side
    3,467.60x = 7,222,956.62
  5. Step 5: Solve for x
    x = 7,222,956.62/3,467.60
  6. Step 6: Final answer
    x = 2,082.98

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1.5x scale

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.