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Finding the Fourth Proportional to 2,519.91, 3,779.46 and 671.04

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Solution

The fourth proportional to 2,519.91, 3,779.46 and 671.04 is: 1,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.91 : 3,779.46 = 671.04 : x
  2. Step 2: Convert to fraction form
    2,519.91/3,779.46 = 671.04/x
  3. Step 3: Cross multiply
    2,519.91x = 3,779.46 × 671.04
  4. Step 4: Simplify right side
    2,519.91x = 2,536,168.84
  5. Step 5: Solve for x
    x = 2,536,168.84/2,519.91
  6. Step 6: Final answer
    x = 1,006.45

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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.