Home / 3,666.28-5,500.50-2,207.20

Finding the Fourth Proportional to 3,666.28, 5,500.50 and 2,207.20

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Solution

The fourth proportional to 3,666.28, 5,500.50 and 2,207.20 is: 3,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.28 : 5,500.50 = 2,207.20 : x
  2. Step 2: Convert to fraction form
    3,666.28/5,500.50 = 2,207.20/x
  3. Step 3: Cross multiply
    3,666.28x = 5,500.50 × 2,207.20
  4. Step 4: Simplify right side
    3,666.28x = 12,140,703.60
  5. Step 5: Solve for x
    x = 12,140,703.60/3,666.28
  6. Step 6: Final answer
    x = 3,311.45

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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.