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Finding the Fourth Proportional to 3,779.11, 5,661.87 and 3,556.74

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Solution

The fourth proportional to 3,779.11, 5,661.87 and 3,556.74 is: 5,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.11 : 5,661.87 = 3,556.74 : x
  2. Step 2: Convert to fraction form
    3,779.11/5,661.87 = 3,556.74/x
  3. Step 3: Cross multiply
    3,779.11x = 5,661.87 × 3,556.74
  4. Step 4: Simplify right side
    3,779.11x = 20,137,837.41
  5. Step 5: Solve for x
    x = 20,137,837.41/3,779.11
  6. Step 6: Final answer
    x = 5,328.72

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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.