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Finding the Fourth Proportional to 4,794.18, 7,188.17 and 1,872.78

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Solution

The fourth proportional to 4,794.18, 7,188.17 and 1,872.78 is: 2,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,794.18 : 7,188.17 = 1,872.78 : x
  2. Step 2: Convert to fraction form
    4,794.18/7,188.17 = 1,872.78/x
  3. Step 3: Cross multiply
    4,794.18x = 7,188.17 × 1,872.78
  4. Step 4: Simplify right side
    4,794.18x = 13,461,851.65
  5. Step 5: Solve for x
    x = 13,461,851.65/4,794.18
  6. Step 6: Final answer
    x = 2,807.96

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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.