Home / 5,500.20-8,250.30-4,895.40

Finding the Fourth Proportional to 5,500.20, 8,250.30 and 4,895.40

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Solution

The fourth proportional to 5,500.20, 8,250.30 and 4,895.40 is: 7,343.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.20 : 8,250.30 = 4,895.40 : x
  2. Step 2: Convert to fraction form
    5,500.20/8,250.30 = 4,895.40/x
  3. Step 3: Cross multiply
    5,500.20x = 8,250.30 × 4,895.40
  4. Step 4: Simplify right side
    5,500.20x = 40,388,518.62
  5. Step 5: Solve for x
    x = 40,388,518.62/5,500.20
  6. Step 6: Final answer
    x = 7,343.10

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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.