Home / 4,721.82-7,078.63-2,769.92

Finding the Fourth Proportional to 4,721.82, 7,078.63 and 2,769.92

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Solution

The fourth proportional to 4,721.82, 7,078.63 and 2,769.92 is: 4,152.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.82 : 7,078.63 = 2,769.92 : x
  2. Step 2: Convert to fraction form
    4,721.82/7,078.63 = 2,769.92/x
  3. Step 3: Cross multiply
    4,721.82x = 7,078.63 × 2,769.92
  4. Step 4: Simplify right side
    4,721.82x = 19,607,238.81
  5. Step 5: Solve for x
    x = 19,607,238.81/4,721.82
  6. Step 6: Final answer
    x = 4,152.47

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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.