Home / 2,135.52-3,202.35-674.79

Finding the Fourth Proportional to 2,135.52, 3,202.35 and 674.79

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Solution

The fourth proportional to 2,135.52, 3,202.35 and 674.79 is: 1,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.52 : 3,202.35 = 674.79 : x
  2. Step 2: Convert to fraction form
    2,135.52/3,202.35 = 674.79/x
  3. Step 3: Cross multiply
    2,135.52x = 3,202.35 × 674.79
  4. Step 4: Simplify right side
    2,135.52x = 2,160,913.76
  5. Step 5: Solve for x
    x = 2,160,913.76/2,135.52
  6. Step 6: Final answer
    x = 1,011.89

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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.