Home / 5,156.16-7,734.39-1,260.56

Finding the Fourth Proportional to 5,156.16, 7,734.39 and 1,260.56

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Solution

The fourth proportional to 5,156.16, 7,734.39 and 1,260.56 is: 1,890.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.16 : 7,734.39 = 1,260.56 : x
  2. Step 2: Convert to fraction form
    5,156.16/7,734.39 = 1,260.56/x
  3. Step 3: Cross multiply
    5,156.16x = 7,734.39 × 1,260.56
  4. Step 4: Simplify right side
    5,156.16x = 9,749,677.27
  5. Step 5: Solve for x
    x = 9,749,677.27/5,156.16
  6. Step 6: Final answer
    x = 1,890.88

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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.