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Finding the Fourth Proportional to 2,658.45, 3,668.85 and 1,760.64

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Solution

The fourth proportional to 2,658.45, 3,668.85 and 1,760.64 is: 2,429.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.45 : 3,668.85 = 1,760.64 : x
  2. Step 2: Convert to fraction form
    2,658.45/3,668.85 = 1,760.64/x
  3. Step 3: Cross multiply
    2,658.45x = 3,668.85 × 1,760.64
  4. Step 4: Simplify right side
    2,658.45x = 6,459,524.06
  5. Step 5: Solve for x
    x = 6,459,524.06/2,658.45
  6. Step 6: Final answer
    x = 2,429.81

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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.