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Finding the Fourth Proportional to 4,836.62, 7,240.56 and 2,638.68

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Solution

The fourth proportional to 4,836.62, 7,240.56 and 2,638.68 is: 3,950.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,836.62 : 7,240.56 = 2,638.68 : x
  2. Step 2: Convert to fraction form
    4,836.62/7,240.56 = 2,638.68/x
  3. Step 3: Cross multiply
    4,836.62x = 7,240.56 × 2,638.68
  4. Step 4: Simplify right side
    4,836.62x = 19,105,520.86
  5. Step 5: Solve for x
    x = 19,105,520.86/4,836.62
  6. Step 6: Final answer
    x = 3,950.18

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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.