Home / 4,712.36-7,068.78-1,789.64

Finding the Fourth Proportional to 4,712.36, 7,068.78 and 1,789.64

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Solution

The fourth proportional to 4,712.36, 7,068.78 and 1,789.64 is: 2,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,712.36 : 7,068.78 = 1,789.64 : x
  2. Step 2: Convert to fraction form
    4,712.36/7,068.78 = 1,789.64/x
  3. Step 3: Cross multiply
    4,712.36x = 7,068.78 × 1,789.64
  4. Step 4: Simplify right side
    4,712.36x = 12,650,571.44
  5. Step 5: Solve for x
    x = 12,650,571.44/4,712.36
  6. Step 6: Final answer
    x = 2,684.55

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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.