Home / 3,677.15-5,513.63-1,211.31

Finding the Fourth Proportional to 3,677.15, 5,513.63 and 1,211.31

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Solution

The fourth proportional to 3,677.15, 5,513.63 and 1,211.31 is: 1,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.15 : 5,513.63 = 1,211.31 : x
  2. Step 2: Convert to fraction form
    3,677.15/5,513.63 = 1,211.31/x
  3. Step 3: Cross multiply
    3,677.15x = 5,513.63 × 1,211.31
  4. Step 4: Simplify right side
    3,677.15x = 6,678,709.10
  5. Step 5: Solve for x
    x = 6,678,709.10/3,677.15
  6. Step 6: Final answer
    x = 1,816.27

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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.