Home / 5,156.92-7,730.79-2,693.47

Finding the Fourth Proportional to 5,156.92, 7,730.79 and 2,693.47

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Solution

The fourth proportional to 5,156.92, 7,730.79 and 2,693.47 is: 4,037.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.92 : 7,730.79 = 2,693.47 : x
  2. Step 2: Convert to fraction form
    5,156.92/7,730.79 = 2,693.47/x
  3. Step 3: Cross multiply
    5,156.92x = 7,730.79 × 2,693.47
  4. Step 4: Simplify right side
    5,156.92x = 20,822,650.94
  5. Step 5: Solve for x
    x = 20,822,650.94/5,156.92
  6. Step 6: Final answer
    x = 4,037.81

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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.