Home / 3,388.30-5,084.61-1,440.50

Finding the Fourth Proportional to 3,388.30, 5,084.61 and 1,440.50

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Solution

The fourth proportional to 3,388.30, 5,084.61 and 1,440.50 is: 2,161.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.30 : 5,084.61 = 1,440.50 : x
  2. Step 2: Convert to fraction form
    3,388.30/5,084.61 = 1,440.50/x
  3. Step 3: Cross multiply
    3,388.30x = 5,084.61 × 1,440.50
  4. Step 4: Simplify right side
    3,388.30x = 7,324,378.48
  5. Step 5: Solve for x
    x = 7,324,378.48/3,388.30
  6. Step 6: Final answer
    x = 2,161.67

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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.