Home / 5,330.28-7,990.74-2,208.30

Finding the Fourth Proportional to 5,330.28, 7,990.74 and 2,208.30

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Solution

The fourth proportional to 5,330.28, 7,990.74 and 2,208.30 is: 3,310.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,330.28 : 7,990.74 = 2,208.30 : x
  2. Step 2: Convert to fraction form
    5,330.28/7,990.74 = 2,208.30/x
  3. Step 3: Cross multiply
    5,330.28x = 7,990.74 × 2,208.30
  4. Step 4: Simplify right side
    5,330.28x = 17,645,951.14
  5. Step 5: Solve for x
    x = 17,645,951.14/5,330.28
  6. Step 6: Final answer
    x = 3,310.51

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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.