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Finding the Fourth Proportional to 2,519.39, 3,779.09 and 670.41

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Solution

The fourth proportional to 2,519.39, 3,779.09 and 670.41 is: 1,005.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.39 : 3,779.09 = 670.41 : x
  2. Step 2: Convert to fraction form
    2,519.39/3,779.09 = 670.41/x
  3. Step 3: Cross multiply
    2,519.39x = 3,779.09 × 670.41
  4. Step 4: Simplify right side
    2,519.39x = 2,533,557.66
  5. Step 5: Solve for x
    x = 2,533,557.66/2,519.39
  6. Step 6: Final answer
    x = 1,005.62

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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.