Home / 3,604.86-5,410.35-1,415.12

Finding the Fourth Proportional to 3,604.86, 5,410.35 and 1,415.12

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Solution

The fourth proportional to 3,604.86, 5,410.35 and 1,415.12 is: 2,123.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.86 : 5,410.35 = 1,415.12 : x
  2. Step 2: Convert to fraction form
    3,604.86/5,410.35 = 1,415.12/x
  3. Step 3: Cross multiply
    3,604.86x = 5,410.35 × 1,415.12
  4. Step 4: Simplify right side
    3,604.86x = 7,656,267.44
  5. Step 5: Solve for x
    x = 7,656,267.44/3,604.86
  6. Step 6: Final answer
    x = 2,123.87

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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.