Home / 2,519.65-3,780.83-1,059.81

Finding the Fourth Proportional to 2,519.65, 3,780.83 and 1,059.81

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Solution

The fourth proportional to 2,519.65, 3,780.83 and 1,059.81 is: 1,590.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.65 : 3,780.83 = 1,059.81 : x
  2. Step 2: Convert to fraction form
    2,519.65/3,780.83 = 1,059.81/x
  3. Step 3: Cross multiply
    2,519.65x = 3,780.83 × 1,059.81
  4. Step 4: Simplify right side
    2,519.65x = 4,006,961.44
  5. Step 5: Solve for x
    x = 4,006,961.44/2,519.65
  6. Step 6: Final answer
    x = 1,590.28

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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.