Home / 3,636.82-5,455.20-1,555.05

Finding the Fourth Proportional to 3,636.82, 5,455.20 and 1,555.05

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Solution

The fourth proportional to 3,636.82, 5,455.20 and 1,555.05 is: 2,332.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.82 : 5,455.20 = 1,555.05 : x
  2. Step 2: Convert to fraction form
    3,636.82/5,455.20 = 1,555.05/x
  3. Step 3: Cross multiply
    3,636.82x = 5,455.20 × 1,555.05
  4. Step 4: Simplify right side
    3,636.82x = 8,483,108.76
  5. Step 5: Solve for x
    x = 8,483,108.76/3,636.82
  6. Step 6: Final answer
    x = 2,332.56

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1.5x scale

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.