Home / 4,087.90-6,131.91-1,009.90

Finding the Fourth Proportional to 4,087.90, 6,131.91 and 1,009.90

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Solution

The fourth proportional to 4,087.90, 6,131.91 and 1,009.90 is: 1,514.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.90 : 6,131.91 = 1,009.90 : x
  2. Step 2: Convert to fraction form
    4,087.90/6,131.91 = 1,009.90/x
  3. Step 3: Cross multiply
    4,087.90x = 6,131.91 × 1,009.90
  4. Step 4: Simplify right side
    4,087.90x = 6,192,615.91
  5. Step 5: Solve for x
    x = 6,192,615.91/4,087.90
  6. Step 6: Final answer
    x = 1,514.86

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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.