Home / 5,779.72-8,668.66-1,619.28

Finding the Fourth Proportional to 5,779.72, 8,668.66 and 1,619.28

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Solution

The fourth proportional to 5,779.72, 8,668.66 and 1,619.28 is: 2,428.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.72 : 8,668.66 = 1,619.28 : x
  2. Step 2: Convert to fraction form
    5,779.72/8,668.66 = 1,619.28/x
  3. Step 3: Cross multiply
    5,779.72x = 8,668.66 × 1,619.28
  4. Step 4: Simplify right side
    5,779.72x = 14,036,987.76
  5. Step 5: Solve for x
    x = 14,036,987.76/5,779.72
  6. Step 6: Final answer
    x = 2,428.66

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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.