Home / 2,668.16-3,682.28-1,549.40

Finding the Fourth Proportional to 2,668.16, 3,682.28 and 1,549.40

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Solution

The fourth proportional to 2,668.16, 3,682.28 and 1,549.40 is: 2,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.16 : 3,682.28 = 1,549.40 : x
  2. Step 2: Convert to fraction form
    2,668.16/3,682.28 = 1,549.40/x
  3. Step 3: Cross multiply
    2,668.16x = 3,682.28 × 1,549.40
  4. Step 4: Simplify right side
    2,668.16x = 5,705,324.63
  5. Step 5: Solve for x
    x = 5,705,324.63/2,668.16
  6. Step 6: Final answer
    x = 2,138.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.