Home / 4,748.28-7,123.42-1,628.04

Finding the Fourth Proportional to 4,748.28, 7,123.42 and 1,628.04

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Solution

The fourth proportional to 4,748.28, 7,123.42 and 1,628.04 is: 2,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.28 : 7,123.42 = 1,628.04 : x
  2. Step 2: Convert to fraction form
    4,748.28/7,123.42 = 1,628.04/x
  3. Step 3: Cross multiply
    4,748.28x = 7,123.42 × 1,628.04
  4. Step 4: Simplify right side
    4,748.28x = 11,597,212.70
  5. Step 5: Solve for x
    x = 11,597,212.70/4,748.28
  6. Step 6: Final answer
    x = 2,442.40

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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.