Home / 10,779.89-16,169.73-2,774.63

Finding the Fourth Proportional to 10,779.89, 16,169.73 and 2,774.63

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Solution

The fourth proportional to 10,779.89, 16,169.73 and 2,774.63 is: 4,161.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.89 : 16,169.73 = 2,774.63 : x
  2. Step 2: Convert to fraction form
    10,779.89/16,169.73 = 2,774.63/x
  3. Step 3: Cross multiply
    10,779.89x = 16,169.73 × 2,774.63
  4. Step 4: Simplify right side
    10,779.89x = 44,864,937.10
  5. Step 5: Solve for x
    x = 44,864,937.10/10,779.89
  6. Step 6: Final answer
    x = 4,161.91

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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.