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Finding the Fourth Proportional to 2,658.16, 3,668 and 1,479.12

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Solution

The fourth proportional to 2,658.16, 3,668 and 1,479.12 is: 2,041.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.16 : 3,668 = 1,479.12 : x
  2. Step 2: Convert to fraction form
    2,658.16/3,668 = 1,479.12/x
  3. Step 3: Cross multiply
    2,658.16x = 3,668 × 1,479.12
  4. Step 4: Simplify right side
    2,658.16x = 5,425,412.16
  5. Step 5: Solve for x
    x = 5,425,412.16/2,658.16
  6. Step 6: Final answer
    x = 2,041.04

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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.