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Finding the Fourth Proportional to 5,156.06, 7,734.11 and 1,260.41

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Solution

The fourth proportional to 5,156.06, 7,734.11 and 1,260.41 is: 1,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.06 : 7,734.11 = 1,260.41 : x
  2. Step 2: Convert to fraction form
    5,156.06/7,734.11 = 1,260.41/x
  3. Step 3: Cross multiply
    5,156.06x = 7,734.11 × 1,260.41
  4. Step 4: Simplify right side
    5,156.06x = 9,748,104.61
  5. Step 5: Solve for x
    x = 9,748,104.61/5,156.06
  6. Step 6: Final answer
    x = 1,890.61

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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.