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Finding the Fourth Proportional to 3,668.42, 5,498.58 and 1,445.60

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Solution

The fourth proportional to 3,668.42, 5,498.58 and 1,445.60 is: 2,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.42 : 5,498.58 = 1,445.60 : x
  2. Step 2: Convert to fraction form
    3,668.42/5,498.58 = 1,445.60/x
  3. Step 3: Cross multiply
    3,668.42x = 5,498.58 × 1,445.60
  4. Step 4: Simplify right side
    3,668.42x = 7,948,747.25
  5. Step 5: Solve for x
    x = 7,948,747.25/3,668.42
  6. Step 6: Final answer
    x = 2,166.80

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1.5x scale

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.