Home / 4,089.12-6,132.36-1,491.36

Finding the Fourth Proportional to 4,089.12, 6,132.36 and 1,491.36

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Solution

The fourth proportional to 4,089.12, 6,132.36 and 1,491.36 is: 2,236.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.12 : 6,132.36 = 1,491.36 : x
  2. Step 2: Convert to fraction form
    4,089.12/6,132.36 = 1,491.36/x
  3. Step 3: Cross multiply
    4,089.12x = 6,132.36 × 1,491.36
  4. Step 4: Simplify right side
    4,089.12x = 9,145,556.41
  5. Step 5: Solve for x
    x = 9,145,556.41/4,089.12
  6. Step 6: Final answer
    x = 2,236.56

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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.