Home / 4,324.16-6,486.80-2,131.20

Finding the Fourth Proportional to 4,324.16, 6,486.80 and 2,131.20

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Solution

The fourth proportional to 4,324.16, 6,486.80 and 2,131.20 is: 3,197.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,324.16 : 6,486.80 = 2,131.20 : x
  2. Step 2: Convert to fraction form
    4,324.16/6,486.80 = 2,131.20/x
  3. Step 3: Cross multiply
    4,324.16x = 6,486.80 × 2,131.20
  4. Step 4: Simplify right side
    4,324.16x = 13,824,668.16
  5. Step 5: Solve for x
    x = 13,824,668.16/4,324.16
  6. Step 6: Final answer
    x = 3,197.08

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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.