Home / 4,748.28-7,121.66-1,628.16

Finding the Fourth Proportional to 4,748.28, 7,121.66 and 1,628.16

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Solution

The fourth proportional to 4,748.28, 7,121.66 and 1,628.16 is: 2,441.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.28 : 7,121.66 = 1,628.16 : x
  2. Step 2: Convert to fraction form
    4,748.28/7,121.66 = 1,628.16/x
  3. Step 3: Cross multiply
    4,748.28x = 7,121.66 × 1,628.16
  4. Step 4: Simplify right side
    4,748.28x = 11,595,193.80
  5. Step 5: Solve for x
    x = 11,595,193.80/4,748.28
  6. Step 6: Final answer
    x = 2,441.98

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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.