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Finding the Fourth Proportional to 2,519.01, 3,779.03 and 764.11

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Solution

The fourth proportional to 2,519.01, 3,779.03 and 764.11 is: 1,146.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.01 : 3,779.03 = 764.11 : x
  2. Step 2: Convert to fraction form
    2,519.01/3,779.03 = 764.11/x
  3. Step 3: Cross multiply
    2,519.01x = 3,779.03 × 764.11
  4. Step 4: Simplify right side
    2,519.01x = 2,887,594.61
  5. Step 5: Solve for x
    x = 2,887,594.61/2,519.01
  6. Step 6: Final answer
    x = 1,146.32

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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.