Home / 3,613.60-5,419.76-1,665.60

Finding the Fourth Proportional to 3,613.60, 5,419.76 and 1,665.60

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Solution

The fourth proportional to 3,613.60, 5,419.76 and 1,665.60 is: 2,498.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.60 : 5,419.76 = 1,665.60 : x
  2. Step 2: Convert to fraction form
    3,613.60/5,419.76 = 1,665.60/x
  3. Step 3: Cross multiply
    3,613.60x = 5,419.76 × 1,665.60
  4. Step 4: Simplify right side
    3,613.60x = 9,027,152.26
  5. Step 5: Solve for x
    x = 9,027,152.26/3,613.60
  6. Step 6: Final answer
    x = 2,498.11

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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.