Home / 4,285.26-6,424.20-1,687.68

Finding the Fourth Proportional to 4,285.26, 6,424.20 and 1,687.68

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Solution

The fourth proportional to 4,285.26, 6,424.20 and 1,687.68 is: 2,530.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.26 : 6,424.20 = 1,687.68 : x
  2. Step 2: Convert to fraction form
    4,285.26/6,424.20 = 1,687.68/x
  3. Step 3: Cross multiply
    4,285.26x = 6,424.20 × 1,687.68
  4. Step 4: Simplify right side
    4,285.26x = 10,841,993.86
  5. Step 5: Solve for x
    x = 10,841,993.86/4,285.26
  6. Step 6: Final answer
    x = 2,530.07

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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.