Home / 7,137.78-10,707.81-2,456.63

Finding the Fourth Proportional to 7,137.78, 10,707.81 and 2,456.63

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Solution

The fourth proportional to 7,137.78, 10,707.81 and 2,456.63 is: 3,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.78 : 10,707.81 = 2,456.63 : x
  2. Step 2: Convert to fraction form
    7,137.78/10,707.81 = 2,456.63/x
  3. Step 3: Cross multiply
    7,137.78x = 10,707.81 × 2,456.63
  4. Step 4: Simplify right side
    7,137.78x = 26,305,164.91
  5. Step 5: Solve for x
    x = 26,305,164.91/7,137.78
  6. Step 6: Final answer
    x = 3,685.34

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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.