Home / 3,388.46-5,082.70-1,439.60

Finding the Fourth Proportional to 3,388.46, 5,082.70 and 1,439.60

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Solution

The fourth proportional to 3,388.46, 5,082.70 and 1,439.60 is: 2,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.46 : 5,082.70 = 1,439.60 : x
  2. Step 2: Convert to fraction form
    3,388.46/5,082.70 = 1,439.60/x
  3. Step 3: Cross multiply
    3,388.46x = 5,082.70 × 1,439.60
  4. Step 4: Simplify right side
    3,388.46x = 7,317,054.92
  5. Step 5: Solve for x
    x = 7,317,054.92/3,388.46
  6. Step 6: Final answer
    x = 2,159.40

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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.