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Finding the Fourth Proportional to 2,658.07, 3,668.14 and 1,479.21

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Solution

The fourth proportional to 2,658.07, 3,668.14 and 1,479.21 is: 2,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.07 : 3,668.14 = 1,479.21 : x
  2. Step 2: Convert to fraction form
    2,658.07/3,668.14 = 1,479.21/x
  3. Step 3: Cross multiply
    2,658.07x = 3,668.14 × 1,479.21
  4. Step 4: Simplify right side
    2,658.07x = 5,425,949.37
  5. Step 5: Solve for x
    x = 5,425,949.37/2,658.07
  6. Step 6: Final answer
    x = 2,041.31

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1.5x scale

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.