Home / 3,613.60-5,412.84-1,876.96

Finding the Fourth Proportional to 3,613.60, 5,412.84 and 1,876.96

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Solution

The fourth proportional to 3,613.60, 5,412.84 and 1,876.96 is: 2,811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.60 : 5,412.84 = 1,876.96 : x
  2. Step 2: Convert to fraction form
    3,613.60/5,412.84 = 1,876.96/x
  3. Step 3: Cross multiply
    3,613.60x = 5,412.84 × 1,876.96
  4. Step 4: Simplify right side
    3,613.60x = 10,159,684.17
  5. Step 5: Solve for x
    x = 10,159,684.17/3,613.60
  6. Step 6: Final answer
    x = 2,811.51

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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.