Home / 2,628.62-3,624.27-2,129.42

Finding the Fourth Proportional to 2,628.62, 3,624.27 and 2,129.42

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Solution

The fourth proportional to 2,628.62, 3,624.27 and 2,129.42 is: 2,935.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.62 : 3,624.27 = 2,129.42 : x
  2. Step 2: Convert to fraction form
    2,628.62/3,624.27 = 2,129.42/x
  3. Step 3: Cross multiply
    2,628.62x = 3,624.27 × 2,129.42
  4. Step 4: Simplify right side
    2,628.62x = 7,717,593.02
  5. Step 5: Solve for x
    x = 7,717,593.02/2,628.62
  6. Step 6: Final answer
    x = 2,935.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.