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Finding the Fourth Proportional to 2,624.75, 3,955.13 and 2,172.67

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Solution

The fourth proportional to 2,624.75, 3,955.13 and 2,172.67 is: 3,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.75 : 3,955.13 = 2,172.67 : x
  2. Step 2: Convert to fraction form
    2,624.75/3,955.13 = 2,172.67/x
  3. Step 3: Cross multiply
    2,624.75x = 3,955.13 × 2,172.67
  4. Step 4: Simplify right side
    2,624.75x = 8,593,201.94
  5. Step 5: Solve for x
    x = 8,593,201.94/2,624.75
  6. Step 6: Final answer
    x = 3,273.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.