Home / 4,218.54-6,330.24-1,878.36

Finding the Fourth Proportional to 4,218.54, 6,330.24 and 1,878.36

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Solution

The fourth proportional to 4,218.54, 6,330.24 and 1,878.36 is: 2,818.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.54 : 6,330.24 = 1,878.36 : x
  2. Step 2: Convert to fraction form
    4,218.54/6,330.24 = 1,878.36/x
  3. Step 3: Cross multiply
    4,218.54x = 6,330.24 × 1,878.36
  4. Step 4: Simplify right side
    4,218.54x = 11,890,469.61
  5. Step 5: Solve for x
    x = 11,890,469.61/4,218.54
  6. Step 6: Final answer
    x = 2,818.62

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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.