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Finding the Fourth Proportional to 3,779.71, 5,669.56 and 1,006.38

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Solution

The fourth proportional to 3,779.71, 5,669.56 and 1,006.38 is: 1,509.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.71 : 5,669.56 = 1,006.38 : x
  2. Step 2: Convert to fraction form
    3,779.71/5,669.56 = 1,006.38/x
  3. Step 3: Cross multiply
    3,779.71x = 5,669.56 × 1,006.38
  4. Step 4: Simplify right side
    3,779.71x = 5,705,731.79
  5. Step 5: Solve for x
    x = 5,705,731.79/3,779.71
  6. Step 6: Final answer
    x = 1,509.57

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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.