Home / 2,691.53-4,035.57-1,285.37

Finding the Fourth Proportional to 2,691.53, 4,035.57 and 1,285.37

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Solution

The fourth proportional to 2,691.53, 4,035.57 and 1,285.37 is: 1,927.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.53 : 4,035.57 = 1,285.37 : x
  2. Step 2: Convert to fraction form
    2,691.53/4,035.57 = 1,285.37/x
  3. Step 3: Cross multiply
    2,691.53x = 4,035.57 × 1,285.37
  4. Step 4: Simplify right side
    2,691.53x = 5,187,200.61
  5. Step 5: Solve for x
    x = 5,187,200.61/2,691.53
  6. Step 6: Final answer
    x = 1,927.23

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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.