Home / 2,150.45-3,226.59-690.02

Finding the Fourth Proportional to 2,150.45, 3,226.59 and 690.02

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Solution

The fourth proportional to 2,150.45, 3,226.59 and 690.02 is: 1,035.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.45 : 3,226.59 = 690.02 : x
  2. Step 2: Convert to fraction form
    2,150.45/3,226.59 = 690.02/x
  3. Step 3: Cross multiply
    2,150.45x = 3,226.59 × 690.02
  4. Step 4: Simplify right side
    2,150.45x = 2,226,419.70
  5. Step 5: Solve for x
    x = 2,226,419.70/2,150.45
  6. Step 6: Final answer
    x = 1,035.33

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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.