Home / 3,674.20-5,511.21-900.79

Finding the Fourth Proportional to 3,674.20, 5,511.21 and 900.79

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Solution

The fourth proportional to 3,674.20, 5,511.21 and 900.79 is: 1,351.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,674.20 : 5,511.21 = 900.79 : x
  2. Step 2: Convert to fraction form
    3,674.20/5,511.21 = 900.79/x
  3. Step 3: Cross multiply
    3,674.20x = 5,511.21 × 900.79
  4. Step 4: Simplify right side
    3,674.20x = 4,964,442.86
  5. Step 5: Solve for x
    x = 4,964,442.86/3,674.20
  6. Step 6: Final answer
    x = 1,351.16

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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.