Home / 1,944.60-2,915.83-1,329

Finding the Fourth Proportional to 1,944.60, 2,915.83 and 1,329

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Solution

The fourth proportional to 1,944.60, 2,915.83 and 1,329 is: 1,992.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.60 : 2,915.83 = 1,329 : x
  2. Step 2: Convert to fraction form
    1,944.60/2,915.83 = 1,329/x
  3. Step 3: Cross multiply
    1,944.60x = 2,915.83 × 1,329
  4. Step 4: Simplify right side
    1,944.60x = 3,875,134.75
  5. Step 5: Solve for x
    x = 3,875,134.75/1,944.60
  6. Step 6: Final answer
    x = 1,992.77

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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.