Home / 4,262.90-6,390.09-1,487.42

Finding the Fourth Proportional to 4,262.90, 6,390.09 and 1,487.42

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Solution

The fourth proportional to 4,262.90, 6,390.09 and 1,487.42 is: 2,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,262.90 : 6,390.09 = 1,487.42 : x
  2. Step 2: Convert to fraction form
    4,262.90/6,390.09 = 1,487.42/x
  3. Step 3: Cross multiply
    4,262.90x = 6,390.09 × 1,487.42
  4. Step 4: Simplify right side
    4,262.90x = 9,504,747.67
  5. Step 5: Solve for x
    x = 9,504,747.67/4,262.90
  6. Step 6: Final answer
    x = 2,229.64

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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.