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Finding the Fourth Proportional to 4,786.63, 7,174.55 and 2,440.05

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Solution

The fourth proportional to 4,786.63, 7,174.55 and 2,440.05 is: 3,657.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.63 : 7,174.55 = 2,440.05 : x
  2. Step 2: Convert to fraction form
    4,786.63/7,174.55 = 2,440.05/x
  3. Step 3: Cross multiply
    4,786.63x = 7,174.55 × 2,440.05
  4. Step 4: Simplify right side
    4,786.63x = 17,506,260.73
  5. Step 5: Solve for x
    x = 17,506,260.73/4,786.63
  6. Step 6: Final answer
    x = 3,657.32

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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.