Home / 3,324.16-4,986.88-1,272

Finding the Fourth Proportional to 3,324.16, 4,986.88 and 1,272

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Solution

The fourth proportional to 3,324.16, 4,986.88 and 1,272 is: 1,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,324.16 : 4,986.88 = 1,272 : x
  2. Step 2: Convert to fraction form
    3,324.16/4,986.88 = 1,272/x
  3. Step 3: Cross multiply
    3,324.16x = 4,986.88 × 1,272
  4. Step 4: Simplify right side
    3,324.16x = 6,343,311.36
  5. Step 5: Solve for x
    x = 6,343,311.36/3,324.16
  6. Step 6: Final answer
    x = 1,908.24

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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.