Home / 2,015.28-2,780.68-1,175.84

Finding the Fourth Proportional to 2,015.28, 2,780.68 and 1,175.84

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Solution

The fourth proportional to 2,015.28, 2,780.68 and 1,175.84 is: 1,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.28 : 2,780.68 = 1,175.84 : x
  2. Step 2: Convert to fraction form
    2,015.28/2,780.68 = 1,175.84/x
  3. Step 3: Cross multiply
    2,015.28x = 2,780.68 × 1,175.84
  4. Step 4: Simplify right side
    2,015.28x = 3,269,634.77
  5. Step 5: Solve for x
    x = 3,269,634.77/2,015.28
  6. Step 6: Final answer
    x = 1,622.42

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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.