Home / 4,262.75-6,389.14-1,628.53

Finding the Fourth Proportional to 4,262.75, 6,389.14 and 1,628.53

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Solution

The fourth proportional to 4,262.75, 6,389.14 and 1,628.53 is: 2,440.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,262.75 : 6,389.14 = 1,628.53 : x
  2. Step 2: Convert to fraction form
    4,262.75/6,389.14 = 1,628.53/x
  3. Step 3: Cross multiply
    4,262.75x = 6,389.14 × 1,628.53
  4. Step 4: Simplify right side
    4,262.75x = 10,404,906.16
  5. Step 5: Solve for x
    x = 10,404,906.16/4,262.75
  6. Step 6: Final answer
    x = 2,440.89

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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.