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Finding the Fourth Proportional to 4,983.49, 7,479.86 and 2,520.04

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Solution

The fourth proportional to 4,983.49, 7,479.86 and 2,520.04 is: 3,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.49 : 7,479.86 = 2,520.04 : x
  2. Step 2: Convert to fraction form
    4,983.49/7,479.86 = 2,520.04/x
  3. Step 3: Cross multiply
    4,983.49x = 7,479.86 × 2,520.04
  4. Step 4: Simplify right side
    4,983.49x = 18,849,546.39
  5. Step 5: Solve for x
    x = 18,849,546.39/4,983.49
  6. Step 6: Final answer
    x = 3,782.40

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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.