Home / 4,109.61-6,171.80-3,779.95

Finding the Fourth Proportional to 4,109.61, 6,171.80 and 3,779.95

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Solution

The fourth proportional to 4,109.61, 6,171.80 and 3,779.95 is: 5,676.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.61 : 6,171.80 = 3,779.95 : x
  2. Step 2: Convert to fraction form
    4,109.61/6,171.80 = 3,779.95/x
  3. Step 3: Cross multiply
    4,109.61x = 6,171.80 × 3,779.95
  4. Step 4: Simplify right side
    4,109.61x = 23,329,095.41
  5. Step 5: Solve for x
    x = 23,329,095.41/4,109.61
  6. Step 6: Final answer
    x = 5,676.72

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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.