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Finding the Fourth Proportional to 3,560.48, 5,338.48 and 1,613.60

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Solution

The fourth proportional to 3,560.48, 5,338.48 and 1,613.60 is: 2,419.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,560.48 : 5,338.48 = 1,613.60 : x
  2. Step 2: Convert to fraction form
    3,560.48/5,338.48 = 1,613.60/x
  3. Step 3: Cross multiply
    3,560.48x = 5,338.48 × 1,613.60
  4. Step 4: Simplify right side
    3,560.48x = 8,614,171.33
  5. Step 5: Solve for x
    x = 8,614,171.33/3,560.48
  6. Step 6: Final answer
    x = 2,419.38

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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.