Home / 4,318.76-6,478.14-2,789.48

Finding the Fourth Proportional to 4,318.76, 6,478.14 and 2,789.48

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Solution

The fourth proportional to 4,318.76, 6,478.14 and 2,789.48 is: 4,184.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,318.76 : 6,478.14 = 2,789.48 : x
  2. Step 2: Convert to fraction form
    4,318.76/6,478.14 = 2,789.48/x
  3. Step 3: Cross multiply
    4,318.76x = 6,478.14 × 2,789.48
  4. Step 4: Simplify right side
    4,318.76x = 18,070,641.97
  5. Step 5: Solve for x
    x = 18,070,641.97/4,318.76
  6. Step 6: Final answer
    x = 4,184.22

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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.