Home / 5,156.58-7,731.96-1,645.92

Finding the Fourth Proportional to 5,156.58, 7,731.96 and 1,645.92

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Solution

The fourth proportional to 5,156.58, 7,731.96 and 1,645.92 is: 2,467.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.58 : 7,731.96 = 1,645.92 : x
  2. Step 2: Convert to fraction form
    5,156.58/7,731.96 = 1,645.92/x
  3. Step 3: Cross multiply
    5,156.58x = 7,731.96 × 1,645.92
  4. Step 4: Simplify right side
    5,156.58x = 12,726,187.60
  5. Step 5: Solve for x
    x = 12,726,187.60/5,156.58
  6. Step 6: Final answer
    x = 2,467.95

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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.