Home / 5,613.39-8,419.75-1,664.48

Finding the Fourth Proportional to 5,613.39, 8,419.75 and 1,664.48

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Solution

The fourth proportional to 5,613.39, 8,419.75 and 1,664.48 is: 2,496.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.39 : 8,419.75 = 1,664.48 : x
  2. Step 2: Convert to fraction form
    5,613.39/8,419.75 = 1,664.48/x
  3. Step 3: Cross multiply
    5,613.39x = 8,419.75 × 1,664.48
  4. Step 4: Simplify right side
    5,613.39x = 14,014,522.37
  5. Step 5: Solve for x
    x = 14,014,522.37/5,613.39
  6. Step 6: Final answer
    x = 2,496.62

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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.