Home / 2,151.72-3,241.58-2,124.84

Finding the Fourth Proportional to 2,151.72, 3,241.58 and 2,124.84

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Solution

The fourth proportional to 2,151.72, 3,241.58 and 2,124.84 is: 3,201.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.72 : 3,241.58 = 2,124.84 : x
  2. Step 2: Convert to fraction form
    2,151.72/3,241.58 = 2,124.84/x
  3. Step 3: Cross multiply
    2,151.72x = 3,241.58 × 2,124.84
  4. Step 4: Simplify right side
    2,151.72x = 6,887,838.85
  5. Step 5: Solve for x
    x = 6,887,838.85/2,151.72
  6. Step 6: Final answer
    x = 3,201.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.