Home / 2,125.91-2,933.79-1,181.76

Finding the Fourth Proportional to 2,125.91, 2,933.79 and 1,181.76

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Solution

The fourth proportional to 2,125.91, 2,933.79 and 1,181.76 is: 1,630.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.91 : 2,933.79 = 1,181.76 : x
  2. Step 2: Convert to fraction form
    2,125.91/2,933.79 = 1,181.76/x
  3. Step 3: Cross multiply
    2,125.91x = 2,933.79 × 1,181.76
  4. Step 4: Simplify right side
    2,125.91x = 3,467,035.67
  5. Step 5: Solve for x
    x = 3,467,035.67/2,125.91
  6. Step 6: Final answer
    x = 1,630.85

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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.